Department Of Anatomical Pathology Research Articles

CLINICOHISTOPATHOLOGICAL STUDY OF TESTICULAR TUMOURS IN DR. HASAN SADIKIN GENERAL HOSPITAL BANDUNG

Objective: The purpose of this research was to describe the clinical and histopathological characteristics of testicular tumours at Hasan Sadikin General Hospital (RSHS) between 2017-2021. Material & Methods: This research was a cross-sectional descriptive study examining the clinical and histopathological profiles of testicular tumours. The secondary data sources included medical records from the Department of Urology, Anatomic Pathology, Medical Records, and Hospital Information System (SIRS). The collected data covered age, ethnicity, clinical symptoms, site, stage, annual prevalence rate, and analyzed using Microsoft Excel. Results: There were 42 patients who had primary testicular tumour. The highest prevalence of testicular tumours at RSHS was in 2019 consist of 12(29%) patients and the lowest in 2020 were 6(14%) patients. Most patients were >35 years old amounting 19(45%) patients, Sundanese ethnicity were 29(69%) patients, and testicular enlargement revealed in 27(64%) patients. Majority patients were in stage 0/IB 36(86%) patients and occurred in unilateral testis which 34(80%) patients, with 3(7%) patients metastasized. The most common histopathological type was seminoma 18(43%) cases followed by prepubertal-type yolk sac tumour 9(21%) patients. Seminomas, and the fibroma-thecoma group were mostly in patients over 35 years old, while prepubertal-type yolk sac tumour was more commonly in children under 15 years old. Conclusion: Prevalence of testicular tumours increased from 2017 to 2019, then started to decrease in 2020. Histopathologically, seminoma was the most common type. These tumours were most commonly found in older individuals (>35 YO) and unilateral, diagnosed in stage 0/IB, and were mostly presented with enlargement of testis. Keywords: Testicular tumours, clinical features, histopathology

Premalignant and Malignant Ocular Surface Squamous Cell Neoplasia: A Retrospective Hospital-Based Study Spanning 18 Years

Abstract Ocular surface squamous cell neoplasia can arise from a premalignant lesion (conjunctival intraepithelial neoplasia or ocular surface squamous cell intraepithelial neoplasia). Their respective magnitudes will provide an indication of early treatment or progression of the disease. This study, therefore, aims to determine the frequency of premalignant and malignant ocular surface squamous neoplasia. This is a retrospective study of all cases of premalignant and malignant ocular surface squamous neoplastic lesions histologically diagnosed over an 18-year period at the Department of Anatomic Pathology, University of Benin Teaching Hospital. The results showed that there were more malignant ocular surface squamous neoplastic lesions relative to ocular surface squamous cell intraepithelial neoplastic lesions. Also, the latter occurs at a relatively lower median age in comparison to the former. In conclusion, our findings suggest that late presentation of symptoms may account for higher frequency of malignant ocular surface squamous neoplastic lesions.

High-risk human papillomavirus genotyping in cervical cancers in Tanzania

BackgroundHigh-risk human papillomavirus (hrHPV) infection causes almost all cervical cancer. Women living with human immunodeficiency virus (Women living with HIV: WLWHIV) are at a six-fold increased risk of developing cervical cancer. This study assessed hrHPV types in cervical cancer by HIV status and histologic subtypes at Muhimbili National Hospital (MNH) in Tanzania.MethodsThis cross-sectional study used formalin-fixed paraffin-embedded (FFPE) archived tissue blocks of cervical carcinomas diagnosed in the Department of Anatomical Pathology at MNH from January to December 2020. Tissue sections were tested for 15 HPV genotypes (16, 18, 31, 33, 35, 39, 45, 51, 52, 53, 56, 58, 59, 66, and 68) using the Ampfire assay. The distribution of HPV genotypes was assessed and compared by HIV status and histologic subtypes.ResultsThe mean age ± standard deviation (N = 227, with valid HPV results) was 55 ± 12.9 years, 28.6% (n = 65) were WLWHIV, and squamous cell carcinoma (SCC) was the most common histologic subtype (91.2%). Most cervical carcinomas (81.1%, n = 184) tested positive for hrHPV with HPV16 (44.1%), HPV18 (15.9%), HPV35 (8.4%) and HPV45 (5.7%) being the most common HPV types. hrHPV was higher among older women with 64.5%, 85.1% and 81.3% among 30–40, 41–60 and ≥ 61-year-old women, respectively (p = 0.033). HPV16 was more commonly detected in SCC (47.8%) than in adenocarcinomas (5%) (p < 0.0001). There was no difference in hrHPV positivity by HIV status.ConclusionsWe found a high proportion of hrHPV among cervical carcinomas diagnosed in Tanzania. Rolling out HPV vaccines that target more hrHPV types than HPV16/18, especially HPV35 and HPV45, could optimize protection against cervical cancer in Tanzania.

ОСОБЕННОСТИ СТРОЕНИЯ СЕМЯПРОВОДОВ У КРОЛИКОВ

The aim of the study is to investigate the anatomical and histological structure of the ductus deferens in representatives of the order Lagomorpha. The results of the micromorphology of the vas deferens in representatives of the order Lagomorpha are presented. Histological preparations were prepared and exami¬ned at the Omsk State Agrarian University (Department of Anatomy, Histology, Physiology and Pathological Anatomy). The objects of the study were material obtained from five sexually mature male Californian rabbits. For histological examination, pieces of organs were selected using the generally accepted method. Sections were stained with hematoxylin and eosin, as well as the Van Gieson method. Morphological, histological, morphometric and statistical methods were used in the study. The ductus deferens in rabbits is a paired tubular organ. The thickness of the mucous membrane of the left ductus deferens varies within 85.77 ± 3.13 μm, of the right ductus deferens was 136.14 ± 3.20 μm. The thickness of the muscular membrane of the left ductus deferens was 287.16 ± 3.48 μm, of the right ductus deferens was 333.79 ± 4.07 μm. The thickness of the adventitia of the left ductus deferens was 246.08 ± 4.75 μm, of the right ductus deferens was 258.56 ± 3.84 μm. During the study, special attention was paid to the adaptation of the muscular layer, which demonstrates a high degree of development and the ability to powerful peristaltic contractions, ensuring the movement of sex cells to the urethra. We can also assume the formation of sphincter systems of the ductus deferens in the indicated anatomical areas.

Cytotoxic T lymphocyte associated antigen-4 (CTLA4) expression with renal cell carcinoma subtype and staging

In Indonesia, approximately 45% of renal cell carcinoma (RCC) patients are at an advanced stage that requires checkpoint inhibition combination immunotherapy. Cytotoxic T lymphocyte associated antigen-4 (CTLA-4) is associated with poor prognosis of RCC and it is the first checkpoint developed in cancer immunotherapy. This study aimed to investigate CTLA-4 expression among RCC subtypes and staging. Formalin fixed paraffin embedded (FFPE) tissue of RCC patients from 2018-2020 were obtained from the Department of Anatomical Pathology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada/Dr. Sardjito General Hospital, Yogyakarta. Expression of CTLA-4 among RCC subtypes and stage was measured using quantitative reverse-transcription polymerase chain reaction (qRT-PCR) and compared. Among the 40 patients involved in this study, the CTLA-4 expression was higher in papillary RCC/pRCC (95.88 + 31.58) compared to clear cell RCC/ccRCC (90.94 + 43.05). However, no significantly different in CTL-4 expression based on histologic subtypes and tumor stage (p&gt;0.05). In conclusion, neither the histologic subtype nor the tumor stage of RCC can be predicted by CTLA-4 expression.

The histopathological spectrum and molecular changes associated with KRAS G12C mutation in non-small cell lung carcinoma

KRAS G12C is the most common KRAS mutation in non-small cell lung carcinoma (NSCLC), for which targeted therapy has recently been developed. From the 732 cases of NSCLC that underwent next-generation sequencing at the Department of Anatomical Pathology, Liverpool Hospital, between July 2021 and May 2023, we retrieved 83 (11%) consecutive cases of KRAS G12C mutated NSCLC, and analysed their clinical, pathological, and molecular features. Of the 83 cases of KRAS G12C mutated NSCLC, there were 46 (55%) men and 37 (45%) women, with mean age of 72 years. Of the 49 cases with known clinical information, 94% were current or ex-smokers, and 49% were stage IV at diagnosis with median survival of 12 months. Sixty-three percent were histology cases and the remainder were cytology cases. Eighty-two percent were non-mucinous adenocarcinomas, with conventional histology including lepidic, acinar, solid, single cells and micropapillary patterns, and 62% were poorly differentiated. There were five (6%) cases of mucinous adenocarcinoma, one case of pleomorphic carcinoma and one case of high-grade fetal adenocarcinoma. TTF1 was positive in the majority (89%) of cases. Nineteen (23%) cases had TP53 co-mutation, and these cases had trends towards higher PD-L1 expression, poor differentiation, and presentation as stage IV disease, but the differences were not statistically significant. KRAS G12C mutated NSCLCs almost exclusively occurred in smokers and were mostly non-mucinous adenocarcinomas with conventional histological patterns which ranged from well to poorly differentiated. Around a quarter had TP53 co-mutation, the histological impacts and immune profile of which need to be assessed in a larger study.

Landscape of HER2-low breast cancer: Insights from a six-year study on prevalence and clinicopathological characteristics

Human epidermal growth factor receptor 2 (HER2)-low breast cancer has emerged as a subtype of breast cancer, defined by HER2 1+/2+ in immunohistochemistry (IHC) and absence of ERBB2 gene amplification on fluorescence in situ hybridization (FISH). Recent trials showed marked response of HER2-low breast cancer to novel anti-HER2 antibody-drug-conjugates. Data on characteristics of HER2-low breast cancer subtype is limited. Real-world data from the Anatomic Pathology Department of Hotel-Dieu de France, spanning 2017–2023, was retrospectively collected. HER2-positive patients were excluded to compare HER2-low to HER2-zero breast cancer subtypes. Clinicopathological characteristics between the groups were compared using a Chi-Squared test. Out of 1195 patients, we observed 341 (28.5 %) HER2-low breast cancers cases. HER2-positive breast cancer cases (n = 178; 14.9 %) were excluded. There was no significant difference in age and sex between HER2-low and HER2-zero group (p = 0.33 and 0.79, respectively). HER2-low breast cancer was associated with positive estrogen receptor status and positive progesterone receptor status (p < 0.001 and p = 0.01, respectively). Ductal adenocarcinomas were more commonly observed in HER2-low group (p < 0.001). When stratified by hormone (HR) status, 87.4 % of patients had HR-positive status and 12.6 % were HR-negative. Among the HR-negative group, HER2-low tumors tended to show lower proliferation index compared to HER2-zero tumors (25%vs.10 %, p = 0.04). This study showed that HER2-low is distinct from HER2-zero and is common among patients with breast cancer. Clinicopathological features such as histological type differ between HER2-zero and HER2-low breast cancer. Within HR-negative breast cancer, those with low HER2 expression exhibit a less aggressive profile compared to HER2-zero tumors.

Morphometric studies of the skin of calfs

Relevance. Previously, we conducted comparative morphometric studies of skin samples from different topographic sites in adult cows obtained in winter. At the same time, morphological features of the skin of different topographic areas were established. In this paper, the purpose of our study was to conduct comparative morphometric studies of the skin of different topographic areas in calves.Methods. Morphometric studies of histological preparations were carried out at the Department of Pathological Anatomy and Forensic Veterinary Medicine and at the Department of Biology, Ecology and Histology. Morphometric studies of histological preparations were used to study the thickness of the dermis proper, as well as bundles of collagen fibers of the mesh layer of the dermis. The research results were statistically processed using the "Biostat" program.Results. Morphological features of the skin of different topographic areas in calves have been established, manifested by different thicknesses of skin layers and bundles of collagen fibers of the dermis. The morphometry performed made it possible to supplement the data on the morphological structure of the skin of cattle and can also be used in the study of morpho- and pathogenesis of skin diseases.

Benign Lipomatous Soft Tissue Tumors in Nigerians: An Analysis of the Clinical and Morphological Features of a Common but Important Entity.

Introduction Benign lipomatous tumors are soft tissue tumors that exhibit a predominant adipocytic phenotype. Lipomas are the archetype and are the most common benign soft tissue tumors in adults but relatively uncommon in children. Their sex incidence is equivocal. They sometimes occur in combination with other mesenchymal elements, giving rise to variants including fibrolipoma, angiolipoma, myolipoma, spindle cell lipoma, chondroid lipoma, osteolipoma, and chondrolipoma. Their clinical significance is mainly due to the cosmetic disfigurement of patients and the differential diagnosis of malignant soft tissue tumors. Occasionally, due to their large size or presence near vital organs, they may cause life-threatening and/or excruciating pressure symptoms. This study was purposed to address the dearth of local studies on the clinical and morphological characteristics of benign lipomatous tumors in Nigerians, to compare these with those of other populations, and to establish baseline data. Materials and methods This was a retrospective study of all benign lipomatous tumors seen in the anatomic pathology and forensic medicine department of Asokoro District Hospital, Abuja, Federal Capital Territory, Nigeria, over an eight-year period. Surgical pathology reports were retrieved for patients' biodata and clinical information. The appropriate slides were retrieved, and reviewed, and new sections were cut where necessary. The tumors were classified according to the 2020 World Health Organization (WHO) guidelines and categorized based on size as small, medium, or giant. The data obtained were analyzed, and the results were presented as tables, bar charts, ratios, and percentages. Results Four hundred and eighteen cases met the inclusion criteria. Of these, 58.4% (244/418), occurred in females, while 41.6% (174/418) occurred in males. The age range was six to 91 years, while the median age was 42 years. The least number of cases, 0.5% (2/418), were seen in patients aged less than 10 years, while the majority, 35.4% (148/418), occurred in the fifth decade, followed by 27.8% (116/418) in the fourth. Size-wise, the majority of tumors, 60% (253/418), were medium, followed by small, 22.8% (95/418). Giant-sized tumors significantly accounted for 16.7% (70/418) of the cases. The diagnostic spectrum comprised conventional lipoma and variants such as fibrolipoma, spindle cell lipoma, pleomorphic lipoma, angiolipoma, chondrolipoma, intramuscular lipoma, and osteolipoma. Lipoma and fibrolipoma dominated with 87.1% (364/418) and 10.0% (42/418), respectively, while the rest accounted for <3%. The majority, 31.8% (133/418), occurred in the back/shoulder region, followed by the lower limb with 18.2% (76/418). Only two cases occurred in the abdominal/pelvic region. More tumors occurred in females in all the regions except the head and neck, which had a male-to-female ratio of 1.5:1. Multiple site tumors were more common in males in a ratio of 2.5:1. Most, 41.1% (39/95), of the small-sized tumors, occurred in the head/neck region, largely involving the face, 48.7% (19/39). Conclusion Our study showed many similarities in the clinical and morphological features of benign lipomatous tumors between Nigerians and other regions of the world. A notable finding, however, was the significantly higher proportion of giant benign lipomatous tumors when compared tostudies from other regions, a finding that warrants further studies.

Clinicopathological Analysis of Skin Adnexal Tumours: Four Year Retrospective Study

Background: Cutaneous adnexal tumours are rare, heterogeneous, benign, or malignant tumours that differentiate into one or more types of skin appendages. Methods: This is a retrospective study of 68 cases of cutaneous adnexal tumours diagnosed in our anatomical pathology department over 4 years period from September 2019 to September 2023. Results: Benign adnexal tumours are the most common, accounting for an estimated 97% of cases. These tumours are more frequent in male patients aged between 51 and 70 years. The head and neck region is the most affected area (51% of cases). Tumours originating from the sweat glands were the most frequent. Follicular and sebaceous tumours came second and third. Conclusion: Adnexal tumours are a very diverse group of rare neoplasms. Accurate diagnosis is a challenge for the dermatologist and usually requires the histological study.

The accuracy of fine needle aspiration biopsy (FNAB) in diagnosing musculoskeletal lesion

Fine needle aspiration biopsy (FNAB) is a relatively non-invasive diagnosis of musculoskeletal lesions that is very challenging in some musculoskeletal cases. This study aimed to evaluate the diagnostic utility of FNAB in musculoskeletal lesions. This was a retrospective cross-sectional study involving 180 musculoskeletal patients who underwent FNAB procedure, with or without ultrasound-guided in the Department of Anatomical Pathology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada/Dr. Sardjito General Hospital, Yogyakarta between 2018 and 2021. The obtained data were then statistically analyzed for sensitivity, specificity, and accuracy. Of 180 cases, 90 (50%) were confirmed with histopathology examination. Further analysis revealed that 33 cases were confirmed positive, 45 patients were true negative, 2 cases were false positive, and 10 were cases false negative. The overall diagnostic sensitivity, specificity, and accuracy of FNAB in musculoskeletal lesions were 76.8, 95.7, and 83%, respectively. FNAB can lead to misinterpretation in cases that show similar morphologic features. Therefore, clinical information and imaging results are necessary to be correlated. In conclusion, FNAB is an efficient and effective technique for early diagnosis in musculoskeletal cases. FNAB can be used to establish the diagnosis of an inoperable tumor because of its high accuracy.

Non-neoplastic Kidney Diseases in Adult Tumor Nephrectomy and Nephroureterectomy Specimens in a Southeast Asian Tertiary Medical Center

OBJECTIVE: Non-neoplastic kidney diseases are concurrently present in up to 15% of patients with renal and ureteral tumors, which have been most studied in the United States. This study was conducted to determine the prevalence and spectrum of renal parenchymal diseases in similar patients from a Southeast Asian academic institution.METHODS: We searched the database of the Department of Anatomical Pathology, Faculty of Medicine Vajira Hospital, Navamindradhiraj University (2012–2022) and found 194 adult nephrectomy and nephroureterectomy specimens with renal, renal pelvis, and ureteral tumors. Additional stains included periodic acid-Schiff, methenamine silver, and Masson trichrome. Direct immunofluorescence microscopy was performed on the paraffin tissue sections for immunoglobulin (Ig) G, IgA, IgM, and kappa and lambda light chains. Clinical information, including age, gender, and co-morbidities, was obtained from the electronic medical records.RESULTS: Analysis of the 194 cases demonstrated the average age was 61 years (range: 17-89 years), with 126 males (65%) and 68 females (35%). After re-examination of the non-neoplastic renal parenchyma, 14 cases (7%) had diffused and/or nodular mesangial sclerosis. Diabetic nephropathy (12 cases) and idiopathic nodular glomerulosclerosis (2 cases) were diagnosed and associated with either stage 1 or 2 genitourinary cancers. Another case was diagnosed with atheroembolic renal disease. In all cases, the concurrent renal diseases were not identified during the initial evaluation.CONCLUSION: Examination of the non-neoplastic renal parenchyma is important to identify non-neoplastic kidney diseases, such as diabetic nephropathy, so early treatment may result in improved clinical outcomes for kidney and urothelial cancer patients.

Death in detention in Dakar prisons: epidemiological and medicolegal aspects

Introduction: The death of a prisoner is a suspicious death requiring systematic medico-legal involvement to determine the circumstances and causes of death. The objective of this study is to determine the profile of people who died in detention in Dakar prisons, to analyze the epidemiological and medicolegal aspects and to propose some preventive measures. Methodology: This is a retrospective study analyzing the causes of death of prisoners in prisons in the Dakar region who were autopsied, from January 2014 to December 2018 in the pathological anatomy and cytology department of the Aristide Le Hospital. Dantec. The data was collected from autopsy reports upon requisition with the aim of determining the circumstances and causes of death of the detainees. Our data was collected using individual collection sheets and subsequently analyzed with Word and Excel software. Results: The average age of the deceased prisoners was 42.4 years. The most represented age group was between 30 and 39 years old with 02 cases/06 or 33.3% with a male predominance. The three penitentiary establishments among the eight (08) recorded cases of death in our study. The Rebeuss Prison recorded 4 cases of death, the Liberty VI Penal Camp and the Special Pavilion each recorded one (01) case of death. Regarding the circumstances of death of detainees, we have identified five (05) cases of natural deaths: three cases of cardiac arrest (myocardial infarction, and or acute pulmonary edema), one suffocation and one case of death of unknown etiology, and a violent death by firearm. Conclusion: Death in a prison environment must be considered suspicious, because people deprived of their liberty have the same right to respect for their life and their dignity as any other person. Our research shows that most deaths in custody are due to natural causes, untreated medical problems or violent deaths. To limit deaths in prison, authorities must take preventive measures to eradicate the causes.

Clinicopathological characteristics of osteosarcoma cases in a tertiary referral hospital in Indonesia: A 5-year retrospective study

Introduction: Osteosarcoma is the most common primary non-hematopoietic malignant bone tumor, which reportedly has a high incidence in several regions of the world including South-east Asia. However in Indonesia, the data regarding osteosarcoma trends and clinicopathological features are still lacking. Therefore, this paper aims to describe the clinicopathological features of osteosarcoma cases in a tertiary referral hospital in Indonesia. Methods: A retrospective study of osteosarcoma cases at the Department of Anatomic Pathology of a tertiary referral hospital in East Java was conducted. Clinicopathological data regarding osteosarcoma cases diagnosed within a 5-year period (January 2018 - December 2022) were obtained. Statistical analysis were performed to the collected data. Results: A total of 44 cases were found, with a male predominance (65.9%) and in the younger age group (11-20 years old, 36.4%). Most of osteosarcoma cases occurred in femur (50%). High grade cases predominated our cohort, with osteoblastic osteosarcoma being the most prevalent histological type (52.3%). Conclusion: Male patients especially in younger age group predominated the cases in our center. Femur is the most common site for osteosarcoma, and most cases of osteosarcoma were of high-grade type. Osteoblastic osteosarcoma is the most common histological diagnosis in our cohort. Future larger-scale studies and nation-wide registry in order to provide better understanding and formulate the best approach for patient management are warranted.

PD-L1, STAT3, IL6, and EGFR Immunoexpressions in High-Grade Osteosarcoma.

Immunotherapy has been widely used in the treatment of various malignancies with satisfactory results. One of the agents for immunotherapy is an inhibitor of programmed cell death-1 and its ligands (PD-1 and PD-L1). However, attempts at utilizing PD-1/PD-L1 immunotherapy in osteosarcoma have not yielded favorable results. This may be due to differences in PD-L1 regulation and the immune landscape in osteosarcoma, as the mechanism is still poorly understood. Therefore, elucidating PD-L1 regulation in osteosarcoma is paramount in order to improve treatment results using immunotherapy. This is a cross-sectional study conducted in the Department of Anatomical Pathology of Saiful Anwar Hospital using 33 paraffin blocks of confirmed cases of osteosarcoma. Immunohistochemical staining using PD-L1, STAT3, IL6, and EGFR was performed. Statistical analyses were subsequently performed on the immunoexpression data of these antibodies. PD-L1, STAT3, IL6, and EGFR expressions were found in 6 (18.2%), 6 (18.2%), 28 (84.8%), and 30 (90.9%) cases, respectively. There were significant correlations between PD-L1 and STAT3 (r = 0.620, p=<0.001), PD-L1 and EGFR (r = 0.449, p=0.009), as well as STAT3 and EGFR (r = 0.351, p=0.045). The existence of a correlation between PD-L1, STAT3, and EGFR indicates the potential role of STAT3 and EGFR in PD-L1 regulation in osteosarcoma, which may become the basis for targeted therapy.

Organization of cervical cancer screening in African countries as a direction of cooperation within the SDGS

The article analyzes the indicators of early cancer detection in progressive and crisis countries in Africa. An analysis of the possible causes of the low detection rate and five-year survival of patients in crisis countries is made. The ways of possible cooperation with the Russian Federation on the way to achieving the Sustainable Development Goals are outlined. According to the United Nations, the African continent includes 54 indepen dent states. Most of them were colonized and had external control of major European countries — Great Britain, France, Germany, and others. In the middle of the 20th century, the process of gaining the independence by African countries began. Nevertheless, to date, the influence of European countries on many spheres of life on the African continent con tinues to persist. African countries have a large gap in socio-economic indicators and are very heterogeneous. Among them, progressive countries can be distinguished — those with experience in effective strategies for achieving the Sustainable Development Goals (SDGs). Such countries include the Republic of Seychelles, Equatorial Guinea, the Repub lic of South Africa, and others. The Russian Federation has strong partnership relations with the Republic of South Africa within the framework of the interstate united group BRICS. Along with the progressive countries, it is necessary to identify crisis countries that have not yet developed experience in effectively achieving the SDGs. Crisis states have many socio-economic issues, low per capita incomes, and big problems in the orga nization of education and health care. These countries include the Republic of Burundi, the Democratic Republic of the Congo, the Central African Republic, and others. The interaction of countries can be aimed at training personnel for the healthcare system of African countries, developing standards for the early detection of oncolog ical diseases of the most typical localizations for African countries, and working out treatment protocols. The possibilities of interaction of the Department of Pathological Anatomy, Omsk State Medical University, and crisis countries of the African continent on the introduction of innovative developments are analyzed. These programs require political, economic, scientific, technological, and socio-cultural cooperation between Russia and African countries.

Clinicopathological Characteristic of Radioactive Iodine-Refractory Differentiated Thyroid Carcinoma at Dr. Hasan Sadikin Hospital 2016-2021

Background Initial therapy for differentiated thyroid carcinoma (DTC) is thyroidectomy with or without cervical lymph node dissection. Furthermore, radioactive iodine (RAI) is given to patients by considering risk stratification and other patient factors. Although most cases of DTC have a good prognosis after standard therapeutic approaches, the risks of local recurrence and distant metastases can be as high as 20% and 10%. Among these patients, two-thirds showed RAI-refractory. This is concerning because 10-year survival rate is less than 10%. This study aimed to analyze the clinicopathological characteristics of RAI-refractory DTC. Methods This is a case-control study. Data was collected from the Department of Nuclear Medicine and Molecular Theranostics and Department of Anatomical Pathology, Faculty of Medicine, Universitas Padjadjaran/Dr. Hasan Sadikin Hospital, Bandung period 1 January 2016 - 31 December 2021. Results Clinicopathological factors associated with RAI-refractory DTC are age, sex, aggressive histologic subtype, LVI (lymphovascular invasion), m-ETE (microscopic extrathyroid extension), TNM (tumor, nodal, metastasis) stage, and ENE (extranodal extension), with p-value &lt;0.05. Meanwhile, there was no significant difference in the histologic type between RAI-refractory and non-RAI-refractory groups. Conclusion In the pathology report, it is necessary to include prognostically relevant tumor histopathological characteristics. In addition to histologic type, histologic subtype, and tumor size, other features such as presence and extent of capsular invasion, LVI, microscopic and macroscopic ETE, ENE, and number and size of metastatic lymph nodes, have been shown to provide additional prognostic information and are required in standard pathology reports for DTC.

The Clinicopathological Profile and Recurrence of Meningioma at Department of Anatomical Pathology, Faculty of Medicine, Universitas Indonesia/Dr. Cipto Mangunkusumo Hospital

Background Meningioma represents the most frequent primary intracranial tumor, and some subtypes may demonstrate aggressive characteristics with a correspondingly elevated risk of recurrence. To predict the likelihood of recurrence, clinical and pathological parameters are essential. More aggressive treatment strategies and strict follow-up can be implemented using these parameters. Therefore, this study aims to determine clinicopathological characteristics of meningioma and its relationship with recurrence. Method This study adopted a retrospective cross-sectional approach using secondary data of meningioma cases from the archives of the Department of Anatomical Pathology, Faculty of Medicine, Universitas Indonesia/Dr. Cipto Mangunkusumo Hospital in 2019-2021. The clinical data were obtained through electronic medical records, and histopathological data assessment, including grade, mitosis, brain invasion, bone invasion, and dural invasion, was conducted through microscopic examination. Result The data indicate that a total of 219 cases of meningioma were reassessed. The mean age of patients was 45±11 years, and the majority (88.1%) were female. The mean tumor size was 5±1.8 cm, with the most common tumor location being the skull base (71%) and 38.6% of cases showed radiological evidence of bone invasion. Subtotal resection was the treatment of choice for most patients (67.8%). CNS WHO grade 1 was found in 91.8% of cases, while Mitotic index ≥4/10 HPF, microscopic evidence of bone invasion, brain invasion, and dural invasion were found in 5%, 33.6%, 3.2%, and 16.8%, respectively. A minimum follow-up of 6 months was fulfilled by 71 cases, and 28% experienced recurrence/progression. These findings showed a significant association between the extent of resection (p=0.007) and tumor size (p=0.02) with the incidence of recurrence. Conclusion Clinical parameters such as the extent of resection and tumor size play a role in predicting the likelihood of meningioma recurrence. The predictive factors knowledge for meningioma recurrence is important in determining treatment strategies and follow-up

Nuclear anaplasia of positive and negative hormonal receptor (estrogen and progesterone receptor) in breast cancer cytology

Background: Breast epithelial duct cells show response to sex hormone such as estrogen and progesterone since they have receptor for estrogen and progesterone. Consequently, malignant cells from breast epithelial ductuli (Breast Ductal Carcinoma) show positivity for estrogen and progesterone receptor (ER and PR). However, when this neoplasm becomes poorly differentiated, they lost these characteristics and became ER and PR negative. On the other hand, poorly differentiated cancer cells show more nuclear enlargement that was accompanied by increase nuclear pleomorphism. This study wants to compare area of breast cancer cells nuclei and nuclear pleiomorphism in positive and negative ER and PR. Material and method: Positive and negative ER and PR breast cancer cases were collected from archive of Anatomic Pathology Department each consisting of ten to fourteen cases. Image analysis was made from each case to measure the area, diameter, and nuclear pleiomorphism. Result and discussion: There were no differences in nuclear size and pleomorphism of breast cancer cells with positive and negative ER and PR. This result show that poorly differentiated cancer cells did not accompany by increase of nuclear anaplasia. Conclusion: There is no difference of cancer cells morphology in positive and negative ER and PR. Hormonal status and anaplasia of cell nuclei can be used as independent prognostic factor to breast cancer progression.

A Retrospective Review of Neglected Tropical Diseases Diagnosed on Histopathological Specimens in the Free State Province, South Africa, 2015-2020.

Neglected tropical diseases (NTDs) are a heterogeneous group of medical conditions that commonly occur in underprivileged populations. NTDs are primarily diagnosed in tropical areas. Although South Africa is not situated in a tropical region, the high poverty rate makes the country susceptible to some NTDs. Limited data are available on the burden of NTDs in the Free State province of South Africa. This study aimed to determine the number of NTDs diagnosed on histopathological specimens in the public sector of the Free State province over a six-year period and to evaluate the patient demographics. A retrospective, descriptive study was performed. All NTDs diagnosed in histopathological specimens from public sector hospitals in the province submitted to the Department of Anatomical Pathology, National Health Laboratory Service, and University of the Free State between 1 January 2015 and 31 December 2020 were included in the study. The demographic information, biopsy site, and referring hospital were noted for each case identified. A total of 72 NTDs were diagnosed. The five most common diagnoses were echinococcosis (n = 33; 45.8%), bilharzia (n = 13; 18.1%), leprosy (n = 9; 12.5%), mycetoma (n = 8; 11.1%), and intestinal worms (n = 5; 6.9%). Ten (30.3%) patients diagnosed with echinococcosis came from the Free State's neighbouring country, Lesotho. Echinococcosis was the most prevalent NTD diagnosed in central South Africa. We recommend that the South African Department of Health add echinococcosis to the principal NTDs of significance in South Africa, alongside soil-transmitted helminths, schistosomiasis, leprosy, and rabies.