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ABSTRACT: The Teaching Pathologists Association of Mumbai was started by two doyens of pathology, Dr V. R. Khanolkar and Dr. P. V. Gharpure. They were the heads of the departments of pathology at Seth G S Medical College and Grant Government Medical college. The first meeting of the association was held in July 1935 at the Grant Medical College. The idea of the meetings was to know about the work done in other institutes and was attended by staff and students of these institutes. Soon Haffkine Institute joined, followed by Tata Memorial Hospital, TN Medical College, and Lokmanya Tilak Medical College in the late 1960s, with the latest entrant being HBT Medical College in 2023. The meetings that started in 1935 have continued till date (2023) with over 500 meetings being conducted so far. The nature of the meetings was in the form of a presentation by a postgraduate or faculty member. It was left to the discretion of the head of the department. This has been a unique association with no formal office bearers and runs purely on the understanding and cooperation of the senior teachers of these institutes. It has nurtured the spirit of mutual cooperation among the various medical institutes in Mumbai with the exchange and sharing of views and material. This article describes the beginning and subsequent growth of this association, the likes of which are yet to be seen elsewhere.

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BACKGROUND: World Health Organization (WHO) declared Coronavirus disease of 2019 (COVID-19) as a pandemic in March 2020. The disease showed a wide range of severity ranging from being asymptomatic to causing high mortality. Various laboratory parameters were investigated, which could be used as biomarkers to determine the severity of the disease. The objective of the present study was to analyze hematological, coagulation, and immunological markers in mild, moderate, severe, and critical cases of COVID-19 patients and their relation to the outcome. MATERIALS AND METHODS: A retrospective observational study of 1,000 COVID-19-positive hospitalized patients was conducted. Cases were classified into mild, moderate, severe, and critical groups using WHO guidelines. Along with demographic data, hematological, coagulation, and inflammatory parameters were analyzed and correlated with severity and survival. RESULT: Out of the total 1,000 cases, there were 510 cases in mild, 232 in moderate, 201 in severe, and 57 in the critical category. Increase in total white blood cell count, absolute neutrophil count (ANC), neutrophil lymphocyte ratio (NLR), platelet lymphocyte ratio (PLR), and inflammatory parameters like C-reactive protein (CRP), serum ferritin, lactate dehydrogenase (LDH), interleukin-6 (IL-6), and decrease in absolute lymphocyte count (ALC) showed significant difference with disease severity and survival. CONCLUSION: These are important biomarkers to predict the prognosis and outcome of COVID-19 patients. As these markers are easily available, they could be used to categorize the patients at an early stage for optimum management.

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Monotypic angiomyolipoma is usually found in the kidneys and is composed predominantly of epithelioid cells which show positivity for melanocyte and smooth muscle markers. It can pose a diagnostic challenge due to a range of differential diagnosis. We report the second case of monotypic angiomyolipoma of nasal cavity and first from India in a 54-year-old male who presented with a nasal polyp. Grossly the tumor was well circumscribed and un-encapsulated. Microscopy showed a large number of epithelioid cells mixed with a few spindle cells, varying sized blood vessels, and focal areas of adipose tissue. Immunohistochemistry was positive for smooth muscle actin (SMA) and human melanoma black (HMB-45) stains. It is important to identify this tumor as it can sometimes be mistaken for malignancy and only needs endoscopic resection.

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Spermatocytic seminoma (SCS) is an indolent germ cell tumor of the testis. It has an excellent prognosis and orchidectomy is generally curative. Very rarely, it can be complicated by a sarcomatous transformation which is associated with a very aggressive behavior and requires adjuvant therapy. SCS with sarcomatous component is a very rare occurrence with <20 cases described in the world literature of which eight showed rhabdomyoblastic differentiation. We report a case of SCS with rhabdomyosarcomatous differentiation in a 60-year-old male along with a short review of literature.

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Pure squamous cell carcinoma (SCC) of the ovary is rare. SCC can arise in a mature teratoma (MT), ovarian endometriosis or in a Brenner tumor. SCC is the most common malignant transformation arising in MT and comprises 80% of all cases. Such neoplastic transformations are extremely difficult either to predict or detect early. The mechanism of malignant transformation has not been completely understood. Due to the rarity and the aggressive course, diagnosis and treatment constitute a big challenge. We report a case of SCC arising in MT presenting with a huge abdominopelvic mass and abundant peritoneal collections clinically masquerading as abdominal tuberculosis. A review of literature with special emphasis on prognosis and treatment modalities is also presented.

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Systemic hyalinosis is inherited as an autosomal recessive disease. It may also be referred to as Fibromatosis hyalinica multiplex juvenilis and Murray-Puretic-Drescher syndrome. A four and a half-year-old female child presented with multiple soft tissue swellings involving the nose, orbital ridges, ears, bony prominences of the ulna and tibia and the parietal and occipital prominence and had gum hypertrophy. The diagnosis of this rare condition was based upon clinicopathological correlation, wherein the histopathological examination of cutaneous lesions reveals accumulation of hyaline material with fibroblast in the dermis. A multidisciplinary approach helped in correct diagnosis, management and in providing counseling for the parents. The child's parents were counseled about the surgical excision of the lesion; however, the parents opted for non-surgical conservative management.

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Kikuchi-Fujimoto Disease (KFD) is a self-limiting necrotizing lymphadenitis that usually presents with fever and cervical lymphadenopathy. Recognition of this condition is crucial, because it can be mistaken for tuberculosis, lymphoma and connective tissue disorders. When present at an unusual location the diagnosis can be challenging. We present an unusual case of Kikuchi-Fujimoto disease involving mesenteric lymph node masquerading as acute appendicitis along with its differential diagnosis. A 30-year-old female presented with complaints of acute abdominal pain, vomiting and fever. Physical examination revealed rebound tenderness in the right iliac fossa. The abdominal sonography was suspicious of acute appendicitis. The patient underwent appendectomy with excision of an enlarged mesenteric lymph node. On histopathology mesenteric node showed features of KFD which was confirmed on immunohistochemistry. Appendix was unremarkable. Although rare KFD should be added to the differential diagnosis of acute appendicitis in patients with enlarged mesenteric lymph nodes, Awareness of this disorder helps to prevent misdiagnosis and inappropriate treatment.

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Spindle Cell Lipoma (SCL) is an uncommon benign tumour of adipose tissue that is usually superficially located in the neck, back and shoulder region. Although it has characteristic histological features it can pose a diagnostic dilemma on cytology. It presents with a mixture of spindle cells, adipocytes, collagen fibres and a myxoid matrix in varying proportions sometimes with mild pleomorphism. Hence, it can be mistaken for other spindle cell, adipose and myxoid tumours which can be benign or malignant. We present a case of SCL of the back in a 47-year-old male, who presented with a slow growing lesion. Fine Needle Aspiration Cytology (FNAC) showed the characteristic cytological features described above and a diagnosis could be given after clinical correlation. We report this case as the cytology of this uncommon tumour has been described in relatively few cases and a correct pre-operative diagnosis will aid in proper management of this tumour.

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CONTEXT: To identify various causes, risk factors, age and sex distribution associated with sudden and unexpected natural deaths (SUNDs) in young adults of age between 18 and 35 years. MATERIALS AND METHODS: Retrospective analysis of autopsy reports and medical records of all SUNDs that occurred instantaneously or within 24 hours of onset of symptoms in young adults, between 2001 and 2009. RESULT: Of the total 6453 deaths autopsied during 2001-2009, 64 (0.99%) were SUNDs in young adults, chiefly in males between 30 and 35 years of age. Non-cardiac causes significantly predominated (73.4%) over cardiac causes (7.8%). Most of the SUND cases were due to preventable causes, including infections (54.6% cases), cerebrovascular accidents (9.37%) and ischemic cardiac causes (6.25%). Sudden adult death syndrome (SADS) accounted for 18.75% deaths. CONCLUSION: SUND in young adults is preventable. A meticulous post-mortem examination with special attention to the conduction system of heart and detailed toxicological analysis can pinpoint the cause of death in SADS.

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Syndromic paucity of bile ducts or "Alagille syndrome" is characterized by peculiar facies, chronic cholestasis, posterior embryotoxon, butterfly-like vertebral arch defects and peripheral pulmonary artery hypoplasia or stenosis. We present a two-year-old female child with the 'partial' or 'incomplete' Alagille syndrome. The child had three of the five major features of the syndrome. A brief review of literature of the syndrome is presented.

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