Invasive Fungal Rhinosinusitis Research Articles

Aspergillus Sinusitis: Risk Factors and Phenotyping.

Background: Aspergillus can cause fungal rhinosinusitis (FRS). We aimed to identify risk factors for sinonasal Aspergillus disease. Methods: Patients with a positive sinonasal mycological culture for Aspergillus species diagnosed in our hospital located in a continental climate were included in the 9-year retrospective study. Results: Of the 86 patients, 3 had invasive FRS (IFRS), 51 had fungal ball (FB) disease, and 32 had chronic rhinosinusitis with fungus (CFRS). In the IFRS group, all patients had a malignancy and were immunocompromised. Allergies, allergic rhinitis, asthma, nasal polyps, and the use of inhaled and nasal steroids were more common in the CFRS group, and IgE levels were greater than those in the FB and IRFS groups (p < 0.05). Conclusion: FB disease is a relatively symptom-free single-sinus disease among elderly individuals, and IFRS is dominant among immunocompromised patients. We discovered a third patient group, predominantly with nasal polyps, atopy, asthma, and elevated blood IgE and eosinophils, that did not fulfill the allergic FRS (AFRS) criteria. It is possible that a less fulminant category of underdiagnosed AFRS exists in cold climates. Treatment with local debridement is usually sufficient for FRS, apart from IFRS, and relapses are not common in cold climates.

Nasal Septum Deviation in Patients with Acute Invasive Fungal Rhinosinusitis in a Tertiary Care Hospital: A Cross-Sectional Study

Nasal Septum Deviation in Patients with Acute Invasive Fungal Rhinosinusitis in a Tertiary Care Hospital: A Cross-Sectional Study

Imaging Features of Invasive Fungal Rhinosinusitis: A Systematic Review.

Fungal rhinosinusitis (FRS) includes non-invasive and invasive subtypes with the latter having significant morbidity and mortality. This systematic review aims to identify the imaging features most correlated with invasive fungal rhinosinusitis (IFRS) and present a checklist of these features to aid diagnosis. PubMed, Embase, CENTRAL, and Science Direct were searched from inception to May 2023, in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guidelines. Primary research articles published in English describing the imaging features of IFRS were included. The systematic review was conducted in accordance with the PRISMA guidelines. Forty-eight articles were identified for inclusion. Six studies examined radiological features in acute invasive fungal rhinosinusitis (AIFRS), and 9 studies of chronic invasive fungal rhinosinusitis (CIFRS). A majority of studies did not specify whether IFRS cases were acute or chronic. On CT, bony erosion and mucosal thickening were the most common features. Other features include nasal soft tissue thickening, nasal cavity opacification, opacification of the affected sinus, and perisinus soft tissue infiltration. Extra-sinus extension was commonly observed on MRI, most often invading intraorbitally and intracranially. Other sites of extra-sinus extension included the cavernous sinus, pterygopalatine fossa, infratemporal fossa, masticator space, and facial soft tissue. IFRS is a condition with potential for high morbidity and mortality. Several radiological features are highly suggestive of IFRS. Early identification of high-risk radiological features using a checklist may aid prompt diagnosis and early treatment. Future research investigating the radiological differentiation between IFRS and other significant pathology including bacterial orbital cellulitis would be beneficial.

Neuro-ophthalmologic Outcomes of Orbital Apex Syndrome Caused by Invasive Fungal Rhinosinusitis

Abstract Objectives Orbital apex syndrome (OAS) is characterized by visual loss, ophthalmoplegia, ptosis, and orbital pain. This study aims to analyze neuro-ophthalmologic outcomes of OAS resulting from invasive fungal rhinosinusitis (IFS). Methods This retrospective study analyzed 25 patients diagnosed with OAS resulting from IFS between January 2018 and July 2022. Patient's visual acuity, degree of ophthalmoplegia, ptosis, and orbital pain were analyzed. Poor and nonpoor visual acuity were classified based on 20/200. The study also investigated risk factors for the failure of vision restoration. Results Only 1 of 25 patients died from the progression of IFS. Among the 25 patients, 5 (20%) had initial visual acuity better than 20/200 before treatment and 20 (80%) had worse vision than 20/200. Four (80%) of five patients with better than 20/200 maintained visual acuity. Four (20%) of 20 patients with worse than 20/200 recovered to better than 20/200 but others remained or declined to worse vision after treatment. The presence of an infiltrative lesion in cavernous sinus on magnetic resonance image scans was significant in univariate but not multivariate analysis (odds ratio, 24.39; 95% confidence interval, 1.543–333.333; P-value = 0.023). Among the patients with worse than 20/200 vision, the patients whose treatment started less than 4 weeks achieved 33.3% (4/12 patients) vision recovery. In contrast, ophthalmoplegia, ptosis, and pain recovered more successfully than vision. Conclusions Although OAS caused by IFS has been reported as very rare, early pathological diagnosis and appropriate treatment can result in good survival and favorable neuro-ophthalmologic outcomes.

Clinical features and risk factors for invasive fungal sinusitis after allogeneic hematopoietic stem cell transplantation

Objective: To analyze the clinical characteristics and outcomes of patients with invasive fungal sinusitis (invasive fungal rhinosinusitis, IFR) after allogeneic hematopoietic stem cell transplantation (allo-HSCT) and explored the risk factors for IFR after allo-HSCT. Methods: Nineteen patients with IFR after allo-HSCT at Peking University People's Hospital from January 2012 to December 2021 were selected as the study group, and 95 patients without IFR after allo-HSCT during this period were randomly selected as the control group (1:5 ratio) . Results: Nineteen patients, including 10 males and 9 females, had IFR after allo-HSCT. The median age was 36 (10-59) years. The median IFR onset time was 68 (9-880) days after allo-HSCT. There were seven patients with acute myeloid leukemia, five with acute lymphoblastic leukemia, two with myelodysplastic syndrome, two with chronic myeloid leukemia, one with acute mixed-cell leukemia, one with multiple myeloma, and one with T-lymphoblastic lymph node tumor. There were 13 confirmed cases and 6 clinically diagnosed cases. The responsible fungus was Mucor in two cases, Rhizopus in four, Aspergillus in four, and Candida in three. Five patients received combined treatment comprising amphotericin B and posaconazole, one patient received combined treatment comprising voriconazole and posaconazole, nine patients received voriconazole, and four patients received amphotericin B. In addition to antifungal treatment, 10 patients underwent surgery. After antifungal treatment and surgery, 15 patients achieved a response, including 13 patients with a complete response and 2 patients with a partial response. Multivariate analysis revealed that neutropenia before transplantation (P=0.021) , hemorrhagic cystitis after transplantation (P=0.012) , delayed platelet engraftment (P=0.008) , and lower transplant mononuclear cell count (P=0.012) were independent risk factors for IFR after allo-HSCT. The 5-year overall survival rates in the IFR and control groups after transplantation were 29.00%±0.12% and 91.00%±0.03%, respectively (P<0.01) . Conclusion: Although IFR is rare, it is associated with poor outcomes in patients undergoing allo-HSCT. The combination of antifungal treatment and surgery might be effective.

Invasive fungal rhinosinusitis, clinical manifestations, and prognostic values: as case series audit

BackgroundInvasive fungal rhinosinusitis (IFRS) is a rare disorder with a high mortality rate. In this study, we reported four rare cases, two of them being the first reports in the literature, in addition, we reviewed retrospectively and discussed the effects of causative fungi, comorbid disorders, and intracranial involvement on mortality rate in 20 IFRS patients treated in the otolaryngology clinic between May 2019 and May 2021.ResultsThere were 10 (50%) males and 10 females with a median age of 51 years. Seven patients had rhinomaxillary, 11 had rhino-orbito-cerebral IFRS, and two had atypical presentations that could not be classified. The most frequent comorbid condition was diabetes mellitus (DM), and the most frequent causative fungi were Mucormycetes. There was no difference between DM and other comorbidity groups for orbital involvement (p = 0.37), intracranial involvement (p = 0.17), hard palate involvement (p = 1), cranial nerve palsies (p = 0.17), causative fungi (p = 0.14), or mortality (p = 0.35). Mucormycetes and other fungi were similar for orbital involvement (p = 0.34), intracranial involvement (p = 0.16), hard palate involvement (p = 0.64), and mortality rate (p=0.35); however, cranial nerve palsies were significantly more frequent in Mucormycetes group (p = 0.04).ConclusionsUrgent diagnosis and multidisciplinary treatment are mandatory in IFRS. Due to its high mortality rate, IFRS should always be kept in mind in cases with atypical presentation, particularly if the patient is in the risk group. The current gold standard in IFRS management is urgent wide surgical debridement and concomitant administration of antifungals.

Impact of azole antifungal treatment on outcome in acute invasive fungal rhinosinusitis with orbitocranial involvement: a surgical perspective.

To provide real-life data on azole treatment outcomes and the role of surgery in the current management of invasive fungal rhinosinusitis complicated by orbitocranial fungal infection (OCFI). Data was collected retrospectively from a chart review from four participating centers and a systematic literature review. The study group included patients with OCFI treated with azole antifungals. The control cases were treated with other antifungal agents. The cranial and orbital involvement degree was staged based on the imaging. The extent of the surgical resection was also classified to allow for inter-group comparison. There were 125 patients in the azole-treated group and 153 in the control group. Among the patients with OCFI cranial extension, 23% were operated on in the azole-treated group and 18% in the control group. However, meninges and brain resection were performed only in the controls (11% of patients) and never in the azole antifungals group. Orbital involvement required surgery in 26% of azole-treated cases and 39% of controls. Despite a more aggressive cranial involvement, azole-treated patients' mortality was significantly lower than in controls, with an OCFI-specific mortality rate of 21% vs. 52%. A similar, though not statistically significant, trend was found for the extent of the orbital disease and surgery. Despite less aggressive surgical intervention for cranial involvement, OCFI patients treated with azoles had a higher survival rate. This finding suggests we may improve morbidity with a more conservative surgical approach in conjunction with azole treatment. The same trend is emerging for orbital involvement.

РОЛЬ МСКТ И МРТ В ДИФФЕРЕНЦИАЛЬНОЙ ДИАГНОСТИКЕ ОСЛОЖНЕНИЙ СРЕДНЕЙ ЗОНЫ ЛИЦА У ПАЦИЕНТОВ С ПАТОЛОГИЕЙ ГРИБКОВОЙ ЭТИОЛОГИИ

Abstract. Introduction. Fungi are one of the constituents of an ecosystem. There are about 250 known human- pathogenic fungi species: From the widely spread Candida to the pathogene of aspergillosis that may lead to fatal consequences in certain conditions. Studies performed by Russian and foreign authors show the increase in the frequency of chronic sinusitis determined by the presence of fungi or fungal-microbial associations. Aim of this study is to perform the differential diagnosis of midface complications in patients with fungal pathology according to multispiral computed tomogrsphy and magnetic resonance tomography. Materials and Methods. A retrospective study was conducted based on the findings of multispiral computed and/or magnetic resonance tomographies of 68 patients. Presence of a fungal process was confirmed by histopathologic, mucroscopic, and cultural investigations. Results and Discussion. Histological investigations of surgical specimen detected the presence of fungal bodies formed by mycelium, i.e., a cluster of densely, compactly located fungal flocci in 28 of 48 (58.3 %): In 28 patients with maxilla sinus lesions, in 14 patients with sohenoidal sinus lesions, and in 5 patients with ethmoidal sinus lesions. In case of acute invasive fungal rhinosinusitis, the computed tomography of paranasal sinuses detected mucosal thickening and the bone density decrease associated with an erosive process. Unilateral lesions, erosions, and thinning of the sinus bone walls. According to magnetic resonance tomography, there was low signal in T2 mode, which is determined by the high concentrations of various metal elements in fungi, as well as by a high protein level and low free water contents in mucine. Conclusions. Visualization is essential to staging the disease and assessing the involvement of deeper structures, which may be clinically unmanifest. Although both computed tomography and magnetic resonance tomography are useful, the contrast-enhanced magnetic resonance tomography is the method of choice and helps assess the spread of the disease, especially regarding the deep extension into maxilla-facial area and brain.

838. The Role of Surgery in the Management of Invasive Fungal Rhinosinusitis Complicated by Orbitocranial Extension in the Era of Azole Antifungals

Abstract Background Orbitocranial fungal infection (OCFI) is a potentially lethal complication of fungal rhinosinusitis, historically requiring aggressive surgery despite its significant morbidity. Over the past two decades, early use of azole agents has been introduced to support amphotericin B formulations as first-line treatment followed by step down therapy with azoles, demonstrating promising outcomes. To date, there is no data regarding the contribution of surgery in the “azole era” to patients’ survival. We aimed to provide real-life data on azole treatment outcomes and the role of surgery in the current management of OCFI. Methods Data was collected retrospectively from a chart review of the four tertiary participating centers in Israel and Australia between January 1, 2009 and January 1 2020, as well as additional cases identified through a systematic literature review (Fig. 1). The study group included patients with OCFI treated with azole antifungals. Control cases were all treated with amphotericin B. The cranial and orbital involvement was staged based on imaging (Fig. 2). The extent of surgical resection was also classified to allow for inter-group comparison. Flowchart for identification, screening, eligibility, and inclusion for the systematic review according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Staging of orbitocranial fungal infection used in the study and T1 contrast-enhanced magnetic resonance images illustrating each stage I. Orbital extent: orA - periorbit, lacrimal apparatus; orB - orbital fat; orC - oculomotor muscles; orD – optic nerve, eyeball. II. Cranial extent: crA - pterygopalatine fossa, nasopharynx; crB – temporal/infratemporal fossa; crC – cavernous sinus, dura; crD – brain, spinal cord. Results There were 125 patients in the azole anti-fungal (AAF) group and 153 in the control group (Table 1). Mucorales and Aspergillus were identified in 28% and 72% of AAF cases, respectively, and 67% and 33% of control cases, respectively (p&amp;lt; 0.001). Among patients with cranial extension, 22.6% were operated on in the AAF group and 18.4% in the control group (Table 2). However, meninges and brain resection were performed only in the controls (10.5%) and never in the azole antifungals group (p=0.045). Orbital involvement required surgery in 25.9% of AAF cases and 38.6% of controls (p=0.12). Despite a more aggressive cranial involvement, azole-treated patients’ 3-year mortality was significantly lower than controls (21% vs. 52%, HR 0.27, p&amp;lt; 0.001, Fig. 4). Comparison of the study groups according to the orbitocranial fungal infection extent a. cranial extent; b. orbital extent Kaplan Meier curve on the orbitocranial fungal infection specific survival during up to 3 years of follow-up *Categorical variables are presented in n (%); **Continuous variables are represented as mean (±SD); ªAcquired immunodeficiency syndrome; bHematologic disease leading to immune compromised status; *Including 6 patients with both Mucorales and Aspergillus Univariate analysis of the study groups' main characteristics Conclusion Despite less aggressive surgical intervention for cranial involvement, OCFI patients treated with azoles had a higher survival rate, suggesting we may improve morbidity with a more conservative surgical approach in conjunction with azole treatment. The same trend is emerging for orbital involvement. Surgery for rhino-orbital-cerebral mycosis patients. Disclosures Sharon C. Chen, PhD MBBS, F2G PTy LTd: Advisor/Consultant|F2G PTy LTd: Grant/Research Support

A retrospective study of invasive fungal rhinosinusitis in adults for surgical outcomes at tertiary care hospital

Background: An invasive fungal rhinosinusitis is most lethal form of sinusitis. It includes acute and chronic invasive fungal rhinosinusitis. The most lethal fungi are Aspergillous species and mucormycosis, others are Alternaria, P. boydii and Sprothrix. Endoscopic debridement combined with intravenous antifungals are efficacious in management of invasive fungal rhinosinusitis. Methods: Study conducted at department of otorhinolaryngology, GMERS Medical College and Hospital, Sola, Ahmedabad. The period of the study October 2020 to October 2022. Total 100 cases taken. All cases of biopsy proven invasive fungal rhinosinusitis above the age of 18 years are included in this study. Oral and written consent taken from all included patients. A nasal endoscopy followed by KOH mount, magnetic resonance imaging – peripheral nervous system (MRI PNS) done. Results: In our study, 57% patients were surgically treated with functional endoscopic sinus surgery, 23% patients treated with modified Denker’s approach debridement. On basis of MRI PNS, nasal endoscopy and symptomatic improvement of the disease, only 10 patients have recurrence of disease and 90 patients are completely recovered after surgical and medical management. Conclusions: Maintaining high index of suspicion in at risk patient populations, followed by prompt evaluation and management is crucial in suspected invasive fungal rhinosinusitis. Early management with antifungal e.g. Amphotericin B intravenous injections, tab Posaconazole, tab Voriconazole and surgical intervention e.g. FESS, modified Denker’s approach debridement, FESS with middle meatal antrostomy very efficacious in terms of preventing the recurrence and mortality in patients.

Invasive Fusarium rhinosinusitis in COVID-19 patients: report of three cases with successful management.

Invasive fungal rhinosinusitis (IFRS) is a life-threatening infection that can occur in immunocompromised patients, including those with COVID-19. Although Mucorales and Aspergillus species are the most common causes of IFRS, infections caused by other fungi such as Fusarium are rare. In this report, we present three cases of proven rhinosinusitis fusariosis that occurred during or after COVID-19 infection. The diagnosis was confirmed through microscopy, pathology, and culture, and species identification of the isolates was performed by DNA sequencing the entire ITS1-5.8 rRNA-ITS2 region and translation elongation factor 1-alpha (TEF-1α). Antifungal susceptibility testing was conducted according to CLSI guidelines. The causative agents were identified as Fusarium proliferatum, F. oxysporum + Aspergillus flavus, and F. solani/falciforme. Treatment involved the administration of antifungal medication and endoscopic sinus surgery to remove the affected mucosa, leading to the successful resolution of the infections. However, one patient experienced a recurrence of IFRS caused by A. flavus 15 months later. Early diagnosis and timely medical and surgical treatment are crucial in reducing mortality rates associated with invasive fusariosis. Additionally, the cautious use of corticosteroids in COVID-19 patients is highly recommended.

Acute invasive fungal rhinosinusitis in post-COVID-19 patients in Vietnam

Acute invasive fungal rhinosinusitis (AIFR) is a potentially lethal infection commonly found in immunocompromised patients. It is considered the most aggressive subtype of fungal sinusitis and can lead to severe morbidity and mortality. There was a significant increase in the incidence of AIFR in post-COVID-19 patients compared to AIFR cases before the COVID-19 pandemic. This study aimed to describe the clinical presentation of AIFR associated with COVID-19 illness. A retrospective study included 22 patients diagnosed with AIFR with a recent COVID-19 infection. The most frequent disease associated with AIFR was diabetes mellitus (95.5%). The mycological analysis identified infection caused by Aspergillus species in 72.7% of patients. Along with stabilizing hemodynamic parameters and controlling any comorbidities, all patients in the present study underwent combined surgical debridement followed by antifungal medications. The overall survival rate was 72.7%. The chance of developing a fatal outcome was significantly higher if meningitis presented initially (odds ratio 35.63, p<0.05). The presence of meningitis upon initial diagnosis is related to a significantly higher chance of developing a fatal outcome and should be considered, especially in AIFR patients previously treated for COVID-19 infections. Early diagnosis, early use of antifungal agents, aggressive surgical debridement, and control of comorbid conditions remain crucial in managing AIFR.

Diagnosis of mucormycosis using a simple duplex PCR assay: Analysis of 160 clinical samples from COVID-19 patients.

Early diagnosis of mucormycosis, a severe and potentially fatal complication in immunocompromised and COVID-19 patients, is crucial for initiating timely antifungal therapy and reducing infection mortality. In this study, the diagnostic performance of a duplex polymerase chain reaction (PCR) assay was evaluated to detect Mucorales-specific and Rhizopus oryzae-specific targets in 160 clinical samples collected from 112 COVID-19 patients suspected of invasive fungal rhinosinusitis (IFRS). During potassium hydroxide (KOH) direct microscopy, non-septate hyphae were observed in 73 out of 160 samples (45.63%); however, using duplex PCR, 82 out of 160 specimens (51.25%) tested positive. Among the positive PCR samples, 67 (81.71%) exhibited a double band (both 175 and 450 base pairs [bp]) indicating the presence of R. oryzae, and 15 (18.29%) showed only a single band (175bp), suggesting the presence of non-R. oryzae Mucorales. DNAs from 10 microscopically negative samples and 4 samples with septate hyphae in microscopy were successfully amplified in PCR. Considering Calcofluor white fluorescence microscopy as the gold standard for laboratory diagnosis of mucormycosis, the duplex PCR assay utilized in this study exhibited a sensitivity of 93.88%, a specificity of 100%, a negative predictive value of 91.18%, and a positive predictive value of 100% for detecting mucormycosis in IFRS specimens. The duplex PCR assay demonstrated higher sensitivity compared to direct examination with KOH (82 vs. 73) and culture (82 vs. 41), enabling rapid detection/identification of Mucorales even in samples with negative culture or in biopsies with only a few hyphal elements.

Acute invasive fungal rhinosinusitis (AIFRS) - A histopathological analysis of expanding spectrum of fungal infections in backdrop of COVID-19 pandemic.

Acute invasive fungal rhinosinusitis (AIFRS) is an aggressive infection affecting immunocompromised patients and carries a high morbidity and mortality. It is commonly seen in immunocompromised patients, mainly in uncontrolled diabetes, malignancy, acquired immunodeficiency syndrome, and so on. However, there has been an exponential increase in the incidence of AIFRS in relation to recent coronavirus disease 2019 (COVID-19) infection. We present this study to assess histomorphological features of fungal infections in the background of COVID-19 era. The study includes interpretation of 34 biopsies of suspected AIFRS in post COVID-19 patients. The demographic details like patients age, sex, diabetic status, COVID-19 status, and history of steroid intake were collected. All specimens were stained with hematoxylin and eosin and PAS stain. Detailed microscopic examination including the presence of fungal hyphae in the tissue, characterization of inflammatory response, presence of tissue invasion, angioinvasion, and necrosis was noted for each case. Thirty-four biopsy specimens from various sites - nasal cavity, maxillary sinus, ethmoid sinus, and so on - were studied. The mean age of the patients with AIFRS was 52.68 years. The dominant fungi were Mucorales in 31 (91.3%), Aspergillus and Mucorales in 1 (2.9%), a combination of Mucorales and Candida identified in 1 (2.9%) case, and Candida alone in 1 case (2.9%). Bony invasion and perineural invasion were observed in 5 cases (14.7%) and 1 (2.9%) case, respectively. Histopathological examination plays an essential role in the diagnosis and appropriate management of the patients. Histopathological features including characterization of fungi, angioinvasion, and bone invasion may provide information on rare dreaded infections in post-COVID-19 patients for possible prognostic characteristics on histology.

Changing Spectrum of Invasive Fungal Infections of the Anterior Skull Base

Abstract Objective To study the etiological and anatomical factors in pathophysiology of invasive fungal rhinosinusitis affecting the skull base. Design Retrospective clinical study over 5 years. Setting Single-center tertiary referral hospital. Materials and Methods All cases of invasive fungal rhinosinusitis with clinicoradiological and/or operative evidence of anterior and central skull base, orbit, and orbital apex involvement with or without intracranial disease were included in the study. Patients with a sinonasal-palatal disease without the involvement of the skull base or orbit were excluded from the study. In addition, we assessed the risk factors such as coronavirus disease 2019 (COVID-19) infection, diabetes mellitus (DM), and other immunocompromised conditions. Results There were 79 patients, of which 65.8% had skull base rhino-oribitocerebral mucormycosis (ROCM), and 34.2% had Aspergillus infection. The mean duration from onset of the symptom to presentation of ROCM was 36.75 ± 20.97 days, while for the Aspergillus group was 21 weeks. The majority of patients (66%) with ROCM presented after 30 days of symptom onset. Among ROCM patients, 88.7% had a history of COVID-19 infection, and 96% had DM. In 40.8% of patients with Aspergillus infection, the tissue diagnosis was unavailable, and galactomannan assay and clinicoradiological assessment were used for diagnosis. The most common area of the skull base involved was the pterygopalatine fossa (88.5%), followed by the infratemporal fossa (73.1%). The most common neurovascular structure (75%) involved was the pterygopalatine ganglion and the infraorbital nerve. Conclusion With the increasing incidence of invasive fungal infections worldwide, particularly after the COVID-19 pandemic, it is crucial to understand the evolving nature of this disease. ROCM, documented in the literature to cause fulminant disease, became a chronic illness, possibly due to the improvement of the patient's immunity during the disease course.

Role of Hyperbaric Oxygen in Treatment of Invasive Fungal Sinusitis

Abstract Background Invasive fungal infections are a major cause of morbidity and mortality in immunodeficient individuals (such as AIDS patients) and in transplant recipients or tumor patients undergoing immunosuppressive chemotherapy. The most widely accepted therapy is the multimodal approach of using intravenous (IV) anti-fungal therapy in combination with sinus debridement, and hyperbaric oxygen (HBO) for the management of invasive fungal sinusitis. HBO has an important role in management of those patients; there is a significant survival benefit with adjunctive HBO use, as HBO has a fungistatic effect, decrease growth rate of fungus, and decrease the morbidity. Objective to assess the use of Hyperbaric oxygen in treatment of invasive fungal sinusitis and evaluate its efficacy as HBO has a fungistatic effect, decrease growth rate of fungus, and decrease the morbidity. Patients and Methods The pertinent role of hyperbaric oxygen therapy in treatment of invasive fungal sinusitis has been popularized over the past decade, to approve the important role of HBOT we established our systematic review which include 15 studies and 98 patients. Results We assess the beneficial effect of adding HBOT in the protocol treatment of invasive fungal rhinosinusitis, which illustrate the favorable results supporting adding HBOT, as survival rate among patients treated with HBOT 66% against 42% survival rate among patients treated without HBOT. Conclusion Hyperbaric oxygen therapy is an attractive option in treatment of invasive fungal rhinosiusitis as an adjunctive therapy.

Magnetic resonance imaging manifestations of vascular complications in patients with acute invasive fungal rhinosinusitis

BackgroundOwing to significant morbidity and mortality with the development of vascular complications in patients with acute invasive fungal rhinosinusitis (AIFRS), early identification, and rapid medical or surgical interventions that are essential for improving patients’ outcomes. For the purpose of presurgical mapping and management planning, magnetic resonance imaging (MRI) is essential for the early identification and improved delineation of disease extent.ObjectiveTo evaluate variable MRI manifestations in the detection of the vascular complications in patients with AIFRS and its impact on patients’ survival.MethodsA retrospective study, included 24 patients with histopathological proven AIFRS to review the para nasal sinus MRI findings. MRI were evaluated for the sinus involvement and the extrasinus extension into the orbit and/or the brain. Vascular structures were assessed for the development of vascular complications, like ICA for thrombosis, attenuation or pseudoaneurysm, cavernous sinus and superior ophthalmic veins for thrombosis.ResultsOf the reviewed 24 patients, 16 had cavernous sinus thrombosis, 15 had ICA thrombosis, 10 had ophthalmic vein thrombosis, 4 had ICA attenuation and only two cases had pseudoaneurysm of the ICA. Vascular thrombosis was more common with mucormycosis with cavernous sinus and ophthalmic vein thrombosis which were significantly increased among non survivor patients (90%, 70%), as compared to the survivor patients (50%, 14.29%), with P = 0.04 and 0.005 respectively.ConclusionsVascular complications are common in patients with AIFRS. MRI is helpful in accurate detection of vascular complications in patients with AIFRS.

Magnetic resonance imaging in COVID-19-associated acute invasive fungal rhinosinusitis - Diagnosis and beyond.

The aim of the study was to evaluate the magnetic resonance imaging (MRI) features of acute invasive fungal rhinosinusitis (AIFRS) at presentation and on follow-up imaging when patients receive treatment with systemic antifungal therapy and surgical debridement. This is a retrospective analysis of imaging data from a cohort of patients diagnosed with AIFRS during the second wave of COVID-19 in single tertiary referral hospital in South India between March 2021 and May 2021 (n = 68). Final diagnosis was made using a composite reference standard which included a combination of MRI findings, clinical presentation, nasal endoscopy and intraoperative findings, and laboratory proof of invasive fungal infection. Analysis included 62 patients with "Definite AIFRS" findings on MRI and another six patients with "Possible AIFRS" findings on MRI and laboratory proof of invasive fungal infection. Follow-up imaging was available in 41 patients. The most frequent MRI finding was T2 hypointensity in the sinonasal mucosa (94%) followed by mucosal necrosis/loss of contrast-enhancement (92.6%). Extrasinosal inflammation with or without necrosis in the pre-antral fat, retroantral fat, pterygopalatine fossa, and masticator space was seen in 91.1% of the cases. Extrasinosal spread was identified on MRI even when the computed tomography (CT) showed intact bone with normal extrasinosal density. Orbital involvement (72%) was in the form of contiguous spread from either the ethmoid or maxillary sinuses; the most frequent presentation being orbital cellulitis and necrosis, with some cases showing extension to the orbital apex (41%) and inflammation of the optic nerve (32%). A total of 22 patients showed involvement of the cavernous sinuses out of which 10 had sinus thrombosis and five patients had cavernous internal carotid artery involvement. Intracranial extension was seen both in the form of contiguous spread to the pachymeninges over the frontal and temporal lobes (25%) and intra-axial involvement in the form of cerebritis, abscesses, and infarcts (8.8%). Areas of blooming on SWI were noted within the areas of cerebritis and infarcts. Perineural spread of inflammation was seen along the mandibular nerves across foramen ovale in five patients and from the cisternal segment of trigeminal nerve to the root exit zone in pons in three patients. During follow-up, patients with disease progression showed involvement of the bones of skull base, osteomyelitis of the palate, alveolar process of maxilla, and zygoma. Persistent hyperenhancement in the post-operative bed after surgical debridement and resection was noted even in patients with stable disease. Contrast-enhanced MRI must be performed in all patients with suspected AIFRS as non-contrast MRI fails to demonstrate tissue necrosis and CT fails to demonstrate extrasinosal disease across intact bony walls. Orbital apex, pterygopalatine fossa, and the cavernous sinuses form important pathways for disease spread to the skull base and intracranial compartment. While cerebritis, intracranial abscesses, and infarcts can be seen early in the disease due to the angioinvasive nature, perineural spread and skull base infiltration are seen 3-4 weeks after disease onset. Exaggerated soft-tissue enhancement in the post-operative bed after debridement can be a normal finding and must not be interpreted as disease progression.

A Curious Case of Invasive Fungal Sinusitis in a Post-COVID-19 Patient: A Case Report

Introduction: Secondary fungal infection following severe acute respiratory syndrome coronavirus 2 is a serious cause of concern as in majority of cases these are associated with devastating consequences. Invasive mucormycosis which was already prevalent in our country came back with a vengeance during the second wave of COVID-19. Methods: A 34-year-old male who had recovered from mild COVID disease developed invasive rhinosinusitis by two different fungi. The patient was followed up for clinical course, diagnosis, treatment, and outcome. Results: This case illustrates a first of a kind of an invasive fungal rhinosinusitis caused by two different fungi: Schizophyllum commune (of phylum Basidiomycota) and Rhizopus arrhizus (of the Mucorales group) in a patient who had recovered from COVID-19. In this case, conventional methods of direct detection and culture only revealed S. commune. Sequencing after DNA extraction from the paraffin blocks was done due to strong clinical suspicion of invasive mucormycosis and R. arrhizus was detected in the tissue sections. Appropriate antifungals for extended duration ensued complete eradication of the infection. Conclusion: Host risk factors are to be taken into consideration while diagnosing fungal infection. One needs to look beyond the obvious when clinical diagnosis is not consistent with the etiological agent isolated and in this regard molecular tools are a great help in establishing the etiological agent conclusively.

Rehabilitation of a Post-Covid Rhinosinusitis Patient with Exenterated Orbital Defect Using a Self-Retained Silicone Prosthesis - A Case Report

A 56-year-old female patient reported to the Department of Prosthodontics for the replacement of right eye. The patient gave a history of covid 1.5 years back and was diagnosed with diabetes for which she was prescribed oral antidiabetic drugs. The patient was apparently alright for 1-year post-covid treatment, after which she noted swelling around the right eye with gradual loss of vision and loss of movement of the right eyeball. It was diagnosed as post-covid acute invasive fungal rhinosinusitis. The patient underwent exenteration for the same.&#x0D; On examination, an orbital defect was noted, measuring 3.7cm mediolaterally, 3.5 cm superoinferiorly and with depth of 3.6 cm (measured at deepest point). The floor of the defect was completely healed with no signs of inflammation/ bleeding/ pus discharge, and with mild scarring at the base [Figure 1]. Patient’s written consent was obtained for the use of original photographs for publication.