Mucocoele Research Articles

Association between maxillary sinus pathology and odontogenic lesions in patients evaluated by cone beam computed tomography. A systematic review and meta-analysis.

Background A study is made of the association between maxillary sinus pathology and odontogenic lesions in patients evaluated with cone beam computed tomography. Material and Methods A literature search was made in five databases and OpenGrey. Methodological assessment was carried out using the Newcastle-Ottawa tool for observational studies. The random-effects model was used for the meta-analysis. Results Twenty-one studies were included in the qualitative review and 6 in the meta-analysis. Most presented moderate or low risk of bias. The periodontal disease showed to be associated with the thickening of the sinus membrane (TSM). Mucous retention cysts and opacities were reported in few studies. The presence of periapical lesions (PALs) was significantly associated to TSM (OR=2.43 (95%CI:1.71-3.46); I2=34.5%) and to odontogenic maxillary sinusitis (OMS) (OR=1.77 (95%CI: 1.20-2.61); I2=35.5%). Conclusions The presence of PALs increases the probability of TSM and OMS up to 2.4-fold and 1.7-fold respectively. The risk differences suggests that about 58 and 37 of out every 100 maxillary sinuses having antral teeth with PALs are associated with an increased risk TSM and OMS respectively. The meta-evidence obtained in this study was of moderate certainty, and although the magnitude of the observed associations may vary, their direction in favor sinus disorders appearance, would not change as a result. Key words:Sinus pathology, Odontogenic Sinusitis, Sinus membrane thickening, CBCT, Periapical lesions, Periodontal disease

A case of a mucous retention cyst arising in the uvula tip of a one-year-old boy

A case of a mucous retention cyst arising in the uvula tip of a one-year-old boy

ASSOCIATION BETWEEN PERIAPICAL LESIONS AND SINUS MAXILLARY ALTERATIONS USING CONE BEAM COMPUTED TOMOGRAPHY

Objective The aim of this study was to evaluate the relationship between periapical lesion (PL) and maxillary sinus alterations (MSA) using cone beam computed tomography (CBCT). Study Design CBCT images of a dental radiology service were seen from January 2013 to December 2017 by a single previously calibrated examiner. PL was recorded when at least 1 posterior tooth presented radiolucency around the root apex indicating bone destruction. MSA observed were presence of mucous retention cyst, sinus polyp, antrolith, and mucosal thickening above 3 mm. Data were analyzed with descriptive statistics and chi-square test in SPSS 21.0. Results A total of 865 maxillary sinuses of 560 patients (63% females; mean age in years ± SD, 48.9 ± 16.8), were included in the study. It was found at least 1 type of MSA in 62% of the maxillary sinuses and the most common alteration was mucosal thickening above 3 mm (34%). PL was observed in 52% posterior region of the maxilla and in these areas the proportion of present MSA (67%) was significantly higher (P Conclusions The presence of PL showed association with several MSA.

Space occupying lesions in the maxillary sinus - A case series

Mucous retention cysts tend to occur in the maxillary sinus. They are rarely found in the other paranasal sinuses. Incidence's vary from 1.4% to 9.6%in the general population. (1)Odontogenic cysts arise from the epithelium associated with the development of teeth. Therefore, this type of cyst is not what you would expect to find in the maxillary sinus.

Sequestered plunging ranula: a case report and literature review

Ranula are swellings arising from the sublingual or submandibular salivary glands either due to mucus extravasation or the formation of mucus retention cysts. They are located on the floor of the mouth, generally have an insidious course and remain asymptomatic unless they grow very large or develop secondary complications. Occasionally, by dividing through cervical facial planes, they present as swellings in the neck, aptly called plunging ranulas. Plunging ranulas, therefore, have an intra-oral component and an extra-oral component; however rarely, the intra-oral component resolves leaving behind an isolated swelling in the neck, making the diagnosis a clinical challenge.

A 10-year study of the etiopathogenesis of cysts with a study of seromucinous glands in vocal folds.

An increasing number of vocal fold cysts excised, as compared to polyps, over the last decade led us to review these cases. We found a statistically significant increase in cysts excised as compared to polyps, over the latter 5-year period (2013-2017). This prompted us to analyze possible factors responsible for this increase. We also performed a histological study of the normative distribution pattern of seromucinous glands in the apparently normal vocal folds. A retrospective review of all cysts and polyps excised over a 10-year period was performed. Patient demographics, air-pollution levels, videostroboscopic findings and histologic analysis of pathology were reviewed. Findings were compared between the initial and latter 5-year period of all cysts excised. The second part of the study entailed a histological study of the presence and distribution pattern of seromucinous glands in 40 apparently normal fresh frozen cadaver vocal folds. There was a statistically significant (P = .035) increase of mucous retention cysts excised as compared to polyps over the latter 5-year period. Decreased laryngeal hydration was a significant associated finding in cysts excised over the decade as compared to polyps. Striking zone lesions, suggestive of vocal abuse, were seen in a majority of patients of both polyps and cysts excised over the decade. Air pollution had significantly increased in India over the latter 5-year period. Vocal fold histology in cadavers revealed a presence of seromucinous glands in 32.50% (13/40) with 25.00% (10/40) present in the Superficial Lamina Propria (SLP). Decreased laryngeal hydration, vocal abuse and mucous glands present in the SLP may be predisposing factors towards mucous retention cyst formation. An increase in number of these cysts excised over the latter 5-year period was seen as was increased air pollution. 3b for the first part of study and NA for the second part of the study Laryngoscope, 130:986-991, 2020.

Evaluation of the frequency of mucous retention cysts in the maxillary sinus in a Turkish population using cone-beam computed tomography

Evaluation of the frequency of mucous retention cysts in the maxillary sinus in a Turkish population using cone-beam computed tomography

A systematic review on incidental findings in cone beam computed tomography (CBCT) scans.

Cone beam CT's use (CBCT) in dentistry is increasing. Incidental findings (IFs: discoveries unrelated to the original purpose of the scan), are frequently found as a result of a large field of view. The aim of the systematic review is to analyze present literature on IFs using CBCT. The authors searched online databases of studies and assessed the prevalence of IFs among patients undergoing head and neck CBCT scans. STROBE criteria was used to evaluate the quality of the studies. The original search retrieved 509 abstracts of which only 10 articles met the inclusion criteria. The sample size varied between 90 and 1000 participants. The frequency of IFs of the selected articles were 24.6-94.3%. The most common non-threatening IFs were found in the airway, such as mucous retention cyst (55.1%) and sinusitis (41.7%). Other non-threatening IFs were soft tissue calcifications such as calcified stylohyloid ligament (26.7%), calcified pineal gland (19.2%), and tonsillolith (14.3%). Threatening IFs were rare findings (1.4%). Three articles reported incidental carotid artery calcifications with a prevalence of 5.7-11.6%. Pathological findings were not common between the articles, but still relevant (2.6%). The studies had a risk of bias varying from moderate to low. There is a high frequency of IFs, yet not all of them require immediate medical attention. The low prevalence of threatening IFs emphasizes that CBCT should not be considered a substitution for conventional radiographs, but when used, the scans should be evaluated by a maxillofacial radiologist.

The Evaluation of Relationship Between Maxillary Sinus Diseases and Dental Pathologies Using Dental Volumetric Tomography

Background: The diagnosis of odontogenic sinusitis is important because the pathology, microbiology and the treatment of the odontogenic sinusitis are different from the other forms of the sinusitis. In this study, the relationship between dental pathologies and maxillary sinus diseases were examined comprehensively. Methods: In this study, the 500 images taken by dental volumetric tomography were examined retrospectively. The vertical distances between the maxillary sinus floor and the teeth apexes were examined. The dental pathologies and the maxillary sinus diseases were reported. Chi-square and Fisher’s exact tests were used for analysis. Results: Focal mucosal thickening was the most common sinus pathology (60.2%). A relationship was found between the mucosal thickening of apical lesions, remained roots and healthy implants (p <0.05). Mucus retention cysts were associated with apical lesions and periodontal defects (p <0.05). Polyp was found to be related with the deep caries, healthy implants, horizontal bone loss and fixed orthodontic treatment (p<0.05). Periostitis was found to be associated with apical lesions and periodontal defects. A relationship was detected between sinusitis with root fragments and apical lesions (p<0.05). Conclusion: Odontogenic infections and odontogenic sources may play a role in the formation of maxillary sinus pathologies. Dental volumetric tomography is very useful in showing the relationship between maxillary sinus with maxillary teeth and the diagnosis of odontogenic sinus pathologies.

The value of the apparent diffusion coefficient calculated from diffusion-weighted magnetic resonance imaging scans in the differentiation of maxillary sinus inflammatory diseases

This study examined the value of the apparent diffusion coefficient (ADC) calculated by using diffusion-weighted imaging (DWI) in the differentiation of inflammatory lesions of the maxillary sinus. Sixty-five maxillary sinus magnetic resonance imaging (MRI) scans with findings suggestive of inflammatory lesions were qualitatively categorized into 4 distinct groups by using T2-weighted images: group 1: presence of mucosal thickening; group 2: presence of sinonasal polyps or mucous retention cysts; group 3: presence of fluid identified by air-fluid levels with a homogeneous signal intensity; and group 4: presence of fluid identified by air-fluid levels with a heterogeneous signal intensity. The ADC of each imaging finding was measured by using a 5-mm area of interest. Statistical differences between the groups were determined by using nonparametric tests with a 5% significance level. Statistically significant differences were observed between group 1 and the other groups. Mucosal thickening was associated with lower ADC values compared with the other inflammatory lesions. The ADC can be useful in differentiating mucosal thickening from other inflammatory alterations in the maxillary sinuses. Mucosal thickening had more restricted water diffusion compared with the other inflammatory lesions.

Diffusion-Weighted Magnetic Resonance Imaging in Maxillary Sinuses Inflammatory Diseases: Report of Three Cases and Literature Review

ABSTRACTBackgroundMagnetic resonance imaging is considered a preferable imaging examination in the diagnosis of inflammatory maxillary sinus disease and can provide precise sinonasal characterization. Diffusion-weighted magnetic resonance imaging and apparent diffusion coefficient are complementary magnetic resonance imaging tools that can be applied to the differentiation of sinus diseases. In this report, 3 cases of inflammatory maxillary sinus diseases imaging findings considering diffusion-weighted magnetic resonance imaging features were described. Additionally, a literature review considering the use of diffusion-weighted magnetic resonance imaging in inflammatory lesions is provided.MethodsThe cases reported were: presence of air-fluid levels, mucosal thickening and a mucous retention cyst. Conventional magnetic resonance imaging and apparent diffusion coefficient (ADC) maps, with ADC values were demonstrated. In the literature review, the studies considering inflammatory lesions were detailed, as well as ADC values established by investigators.ResultsADC values for presence of air-fluid levels, mucosal thickening and mucous retention cyst were respectively: 1.99 x 10-3 mm2/s; 1.83 x 10-3 mm2/s; 2.05 x 10-3 mm2/s.ConclusionsIt was observed that apparent diffusion coefficient values from the inflammatory lesions described in this report were different and apparent diffusion coefficient may be useful in the differentiation of these maxillary sinus alterations. Further larger sample investigations considering apparent diffusion coefficient values focusing in inflammatory lesions are recommended. The lack of studies considering the use of diffusion-weighted magnetic resonance imaging on inflammatory diseases diagnostic was the major limitation to the literature review.

Intralesional steroid injection as an alternative treatment for 57 patients of vocal fold mucus retention cysts.

Intralesional steroid injection as an alternative treatment for 57 patients of vocal fold mucus retention cysts.

Incidence of wound infection in common paediatric day care surgeries following a no-antibiotic protocol: a viable recommendation for a public hospital in India

Background: The use of broad spectrum antibiotic administered intravenously 1 hour before incision has a well-established role in preventing surgical site infection following major surgeries. However, the benefit of this practice in clean, day care surgeries is less clear. The aim of the our study is to determine the incidence of wound infection in paediatric day care surgeries where antibiotics were not used. The objective of the present study was to observe the rate of Surgical Site Infection in paediatric day care surgery at a tertiary care public hospital where prophylactic antibiotics are not used empirically.Methods: We reviewed all paediatric patients undergoing day care common procedures namely herniotomy, open orchiopexy, circumcision and other minor procedures such as lymph node biopsy, lipoma excision, mucous retention cyst excision and dermoid cyst excision at our institute in a public hospital between January 2015 and December 2016. Those with heart diseases requiring infective endocarditis prophylaxis, those with immunosuppression and those who had received antibiotics perioperatively for any reason other than treatment of surgical site infection were excluded. Surgical site infection (SSI) was classified as superficial or deep as defined by the Centre For Disease Control (CDC). Results: A total of 576 paediatric patients underwent clean day- care procedures at our institute between January 2015 and December 2016, of which 478 patients met the inclusion criteria and were included in the study. 2 (0.41%) of these 478 patients developed surgical site infection. 1 patient had serous discharge at one point along the suture line while the other developed pus and required debridement.Conclusions: Clean day- care surgeries in children can be carried out safely without the empiric use of perioperative antibiotics even in the setting of a public hospital in a developing country.

Risk factors and clinical outcomes of sinus membrane perforation during lateral window sinus lifting: analysis of 120 patients

The aim of this study was to identify the risk factors associated with sinus membrane perforation and the effect of sinus membrane perforation and other risk factors on graft success and postoperative sinusitis. Sinus membrane perforation, graft failure, and postoperative sinusitis were tested for an association with age, sex, operator experience, side of the operation, residual bone height, presence of septa, presence of a mucous retention cyst, and smoking (χ2 test). Logistic regression analysis was used to model the odds ratio (OR) with corresponding risk factors. One hundred and twenty patients were included in this study. A total of 22 (18.3%) perforations occurred. A residual bone height of 3–6mm (OR 6.808, P=0.002) and presence of septa (OR 4.023, P=0.025) were identified as significant risk factors. Twenty-eight (23.3%) sinus grafts were classified as failed. Membrane perforation (OR 16.819, P<0.005) and residual bone height of 3–6mm (OR 5.363, P=0.01) were identified as significant risk factors for graft failure. None of the risk factors investigated in this study was significantly associated with postoperative sinusitis. These results suggest that the presence of septa and a residual bone height of 3–6mm are associated with an increased risk of sinus membrane perforation, and that sinus membrane perforation has a negative effect on graft success.

Mucous retention cyst in maxillary sinus with expansion of maxillary tuberosity

Mucosal retention cyst in the maxillary sinus is a benign entity that results from obstruc- tion and dilation of seromucous glands ducts due to inflammation, infection or reaction of maxillary sinus mucosa to allergic processes. It is an asymptomatic lesion, usually identified in routine imaging tests requested by professionals. The present study aims to present a case of maxillary sinus mucosal retention cyst in a 63 years old patient who reported difficulty in adapting her total upper prosthesis and persistent pain in the left maxilla. The treatment was surgical enucleation.

Association between the seasonal changes and mucous retention cyst of maxillary antrum in cone beam computed tomography images in a sample population of Isfahan, Iran.

Mucous retention cysts (MRCs) of the maxillary sinuses are incidental findings in radiographs of the oral and maxillofacial structures. These cysts usually appear as rounded, dome-shaped, and soft-tissue masses, most often on the floor of the maxillary sinus. The aim of this study was to determine the prevalence of maxillary antral MRC and the effect of seasonal variation, sex and age in cone beam computed tomography (CBCT) images. In this simple, nonrandomized, cross-sectional study, CBCT images of patients were reviewed to evaluate the prevalence of MRCs and its location in the antrum, uni or bilateral, size, and season in which MRC occurred. The findings were analyzed using Statistical software SPSS and t-tests (P > 0.05). A total of 765 CBCT images were evaluated (380 males and 385 females); 180 were suggestive of MRCs, 110 occurred in males (28.9%) while 70 (18.2%) occurred in females, which resulted in a prevalence of 23.5%. The peak prevalence of MRC was found in spring (41.6% of all radiographs), but there was no significant statistical difference between the occurrence of MRCs in different seasons (P > 0.05). This study showed no significant difference between the occurrences of MRCs in different seasons. There was no significant difference between male and female and different decades of life. Furthermore, there was no significant difference between the involvement of right and left maxillary sinuses and different walls of the antrum.

Ectopic Thymic Cyst of the Subglottis: Considerations for Diagnosis and Management

To share the diagnostic and management challenges created by an extremely rare airway lesion-the subglottic ectopic thymic cyst. Case report and literature review. We review the presentation, management, and clinical course of an infant who presented with a subglottic mass that was histologically confirmed as a thymic cyst. A brief literature review supplements the case presentation Results: We present the third described case of an ectopic thymic cyst presenting as a subglottic mass. The differential diagnosis of subglottic masses in neonates consists primarily of subglottic hemangioma and mucous retention cysts. Otolaryngologists must be prepared for unexpected findings when dealing with critical airways. We compare the presentation and management of our patient with the 2 previously described cases. We propose an embryologic theory for the origin of these rare lesions. An ectopic thymic cyst is a rare and unexpected cause of neonatal stridor. Management of pediatric airway lesions must allow for unexpected findings at the time of diagnostic and therapeutic endoscopy. The appropriate management of subglottic thymic cysts is poorly defined, but close surveillance for recurrence is mandatory.

Frequency, location, and association with dental pathology of mucous retention cysts in the maxillary sinus. A radiographic study using cone beam computed tomography (CBCT).

The purpose of the present study was to evaluate the frequency, locations, and dimensions of mucous retention cysts of the maxillary sinus and analyze potential associated dental pathology. A total of 156 cone beam computed tomography (CBCT) scans were included in the analysis, resulting in an evaluation of 310 maxillary sinuses. The presence of mucous retention cysts (MRC) manifesting as dome-shaped radiopacities in the sinus was diagnosed. Their locations were recorded, and dimensions (mm) were measured in coronal and sagittal/axial slices. The patients were grouped into (a) patients/sinuses with MRCs (test), and (b) patients/sinuses with healthy or any other changes (control) for further comparison and evaluation. There were 40 sinuses (12.9%) with a presence of a total of 56 MRCs. The mean age of involved patients was 29.0years. The analysis showed that gender, age, sinus side, status of dentition, endodontic status, and periodontal status did not have a significant influence on the presence of MRCs when compared between test and control groups. Age and endodontic status exhibited a significant association with cyst location. Most of the sinuses analyzed (79.5%) did not present any MRC, and only 28.6% of the cysts diagnosed were found on the floor of the maxillary sinus. The mean dimension of the MRCs measured 6.28±2.93mm. No influencing factors on the presence or absence of MRCs were found in the present study. Most MRCs were not located on the floor of maxillary sinus. Future studies should assess their impact on surgical interventions in the sinus.

Impact of Perioperative Voice Therapy on Outcomes in the Surgical Management of Vocal Fold Cysts

Vocal fold cysts are benign mid-membranous lesions of the true vocal fold, classified as mucus retention or epidermal inclusion cysts. Treatment is surgical excision with or without postoperative voice therapy. A retrospective review was performed of the demographics, treatment approach, and outcomes of patients treated for vocal fold cysts between 2009 and 2014. Voice Handicap Index (VHI)-10 scores before and after treatment were compared using the Wilcoxon Rank-Sum test and the two-tailed Student's t test. Videostroboscopy examinations were reviewed for posttreatment changes in vibratory characteristics of the vocal folds. Twenty-five patients were identified, and one was excluded for incomplete records. Mean age was 41.9 years (66.7% female), and mean follow-up time was 5.58 months. Microflap excision was pursued by 21/24 (87.5%) patients, with 14 patients (58.3%) undergoing perioperative voice therapy. One cyst recurred. Two patients elected for observation, and their cysts persisted. VHI-10 decreased from 23.8 to 6.6 (P < 0.001) overall. There was a statistically significant reduction in VHI-10 in patients undergoing surgery with and without postoperative voice therapy (P < 0.004 and 0.001), but there was no significant difference between these two groups. Mucosal wave was classified as normal or improved in the majority. Cysts were characterized as mucus retention cysts in 19/21 (90%) and as epidermal inclusion cysts in 2/21 (10%). Vocal fold cysts impact mucosal wave and glottic closure. Surgical excision resulted in low rates of recurrence, and in improvement in the mucosal wave and VHI-10. Perioperative voice therapy did not offer a significant benefit. Mucus retention cysts were the majority, in contrast to other published studies.

Prevalence Of Maxillary Sinus Jaw Mucuous Cysts In University Dental Radiology Service

Background: Mucosal cyst of the maxillary sinus or antral pseudocyst is one of great importance injury, being the pathology that affects more the maxillary sinus. Their discovery, in most cases, it is for the interpretation of the images in routine panoramic radiography. Aims: The research aimed to evaluate the prevalence of mucous cyst in maxillary sinus in radiology clinic at Ceara Federal University. Material and Methods: To this study conduction, were analyzed 1996 panoramic radiographs from a digital file obtained between April 2011 to April 2013 Results:. Aspects as gender, affected side and teeth absence next to the cyst in the respective quadrant were evaluated.It was observed in the sample the occurrence of 45 patients with suggested images of mucous cysts in maxillary sinus,making a prevalence of 2,25%. From them, 26 (57,8%)were female and 19 (42,2%) were male. 48 maxillary sinuswere affected with the wound, from which28 (58,3%) it was in the left side and 20 (41,7%) in the right site. Three patients presented the wound in both sides, what represents 6,7% of the affected patients. From those 48 Mucous retention cyst, 40 (83,3%) were not related to an edentulous area in ipsilateral quadrant and 8 (16,7%) were shown next to an edentulous area. Conclusion: The conclusion was that the cyst of retention mucous in the maxillary sinus had prevalence in males and in the left side of the maxillary sinus. It was not found a relation between the cyst and the edentulous area.