Interfollicular Hodgkin's Disease is characterised by reactive follicular hyperplasia with involvement of the interfollicular area of lymph node by Hodgkin's lymphoma. It represents a peculiar pattern of focal involvement of lymph node and does not constitute a classical subtype. Its importance rests in the fact that it can be misinterpreted as one of the many causes of reactive hyperplasia of lymph node and not as Hodgkin's disease. Eleven cases of interfollicular Hodgkin's disease were diagnosed in a period of five years. Majority of the patients were less than twenty years and all had localised lymphadenopathy. Lymph node biopsy showed follicular hyperplasia with expanded interfollicular area. Careful search of the interfollicular area showed infiltration by inflammatory cells and scattered Reed-Sternberg and Hodgkin's cells. Immunohistochemistry with CD 15 and CD 30 highlighted the atypical cells. This report emphasises on the problems in diagnosis of interfollicular Hodgkin's disease.

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The recent WHO classification of non-Hodgkin's lymphoma is based on the morphology and immunohistochemical expression of the lymphoma cells and to a lesser extent, on the molecular and cytogenetic findings. Fifty-three cases of non-Hodgkin's lymphoma were included in the study. Of these, seven cases were primary extra nodal lymphomas. Twenty two patients had peripheral blood and/or bone marrow involvement. A detailed morphological assessment was done and classified using the International working formulation. The two most common types encountered were diffuse large cell lymphoma and small lymphocytic lymphoma. Immunohistochemistry was done using labeled streptavidin-biotin peroxidase complex with CD3, CD20, CD15, CD30, CD 45 (leukocyte common antigen), Cyclin D1, EMA (epithelial membrane antigen). 38 cases (72%) showed B cell expression and 12 cases (22.5%) showed T cell expression. Three cases did not express either marker. B-cell diffuse large cell lymphoma (26%) was found to be the predominant B cell non-Hodgkin's lymphoma. The commonest T-cell lymphoma was T lymphoblastic lymphoma (67%) followed by peripheral T cell angioimmunoblastic lymphoma (25%). Immunohistochemistry is a useful and necessary diagnostic modality and helps subdivide prognostically different types of non-Hodgkin's lymphoma.

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Based on morphological, phenotypic, genotypic and clinical findings, Hodgkin's disease has recently been classified into two subtypes: Nodular lymphocyte predominant and classical Hodgkin's disease. Forty-two cases of Hodgkin's disease were subjected to detailed morphological assessment and immunophenotyping. The commonest subtype was Nodular Sclerosis seen in 27 cases. The panel of antibodies used was CD 15, CD 30, CD 3, CD 20, CD 45 and Epithelial Membrane Antigen. Immunophenotyping was done by Streptavidin Biotin Peroxidase complex technique. CD 30 was expressed in 86% and CD 15 in 76% cases. Immunophenotype helped reclassify two cases, according to the WHO classification scheme. Although morphology remains the gold standard in the diagnosis of Hodgkin's disease, immunophenotype is a useful adjunct in differentiating prognostically distinct subtypes.

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Aspiration cytology is a safe simple and reliable technique without any complication This can be used as a safe and reliable out patient procedure with minimum discomfort to the patient. The use of a cannula as a device for endometrial aspiration provides adequate material for cytological examination. So the present study was undertaken, to assess the ease of collection of endometrial material and to assess the relative compatibility of aspiration cytology and histopathology.

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Cytological grading of breast cancer is not well established despite histological grading having gained a strong foothold. In our study we have analyzed 50 cases of breast carcinoma which included invasive ductal carcinoma, invasive lobular carcinoma, mucinous carcinoma, stromal sarcoma, apocrine carcinoma, papillary carcinoma. Papanicolaou smears were graded according to established Hunt's, Simplified Black and Modified Black grading systems. They were then compared with the Scarff Bloom Richardson grading system. Simplified Black grading system has been recommended for cytological grading of breast neoplasia because of its lucidity and its reproducibility. Cytological grading of breast neoplasia is important for neo adjuvant chemotherapy and also for predicting the prognosis of the patient on FNAC alone. Incorporation of other parameters like apoptosis and bcl-2 is also recommended.

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The present study was conducted to assess: 1) Prevalence of enteroparasite infestation among food handlers working in food service establishments located in the campus of a medical college, 2) Presence of enteric organisms on their hands and nails and their hand washing practices. A total of 151 food handlers were interviewed regarding their socio-demographic and professional characteristics. Their hand washing practices were also observed. Stool examination for enteroparasites and stool culture for Salmonella & Shigella and culture of nail clippings / nail bed swabs for detecting presence of enteric organisms were also carried out. Prevalence of enteroparasite infestation was observed to be 41.1%. None of the stool samples was observed to be positive for Salmonella or Shigella. Enteric organisms were isolated from nail clippings/nail bed swab samples of 76 (73.1%) study subjects. Hand washing practices were observed to be poor with low use of soap. Findings highlight importance of periodic stool examination and deworming of food handlers and need to educate them about importance of maintaining hand hygiene with a focus on improving their hand washing practices.

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Breast carcinoma is one of the leading causes of malignancy in females. Diagnosis of breast carcinoma is often made by fine needle aspiration biopsy. Nuclear grading is the most important prognostic factor. It is important to grade the breast carcinoma which will provide valuable information to the treating oncologist to plan the management. The purpose of the study is to compare the cytological grading with histological grading and to assess the prognosis according to the grade. 100 cases of breast carcinoma were graded cytologically by Robinson Grading system and 71 cases were graded histologically by modified Bloom-Richardson system and results of both were compared and statistical correlation was done. In the present study sensitivity and specificity of cytological grading system were 90.77% and 84.42% respectively.

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This hospital-based study seeks to find out the most common cancers amongst the patients attending Himalayan Institute of Medical Sciences (HIMS), Dehradun, situated in Uttaranchal, which has inadequate health care facilities and low socio-economical status. In our study, of the 20,247 cases reported in the pathology department from July 1996 to Dec. 2003, 18.57% cases were malignant. Male to female ratio was 1.7:1.Top five cancers in males were those of lung, larynx, non-Hodgkins lymphoma, oesophagus & stomach. Top five cancers in females were those of breast, cervix, gall bladder, ovary & oesophagus. Tobacco and alcohol related cancers predominated in males. Skin and soft tissue cancers and were also common amongst both genders. Patients mostly reported with cancers in advanced stages, which could be attributed to poor medical facilities and health awareness in this region.

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Medical audit is essential in assessing the efficacy of health care delivery system. Though autopsy services are generally looked upon indifferently and with sceptism by the clinicians, it can form an important part of the medical audit system. The aims of this study were to audit autopsies of deaths within 24 hours of hospital admission by: 1) Comparing premortem and postmortem diagnosis; 2) Comparing postmortem gross diagnosis with postmortem histopathologic diagnosis; 3) Whether deaths could be certified based on clinical judgement and autopsies avoided. The study sample was 99 autopsies. In 45% autopsies, clinical impression did not match the final cause of death. In 14.2% autopsies, final cause of death could have been given by the clinician based on his clinical judgement. In 54.5% autopsies, there was agreement between premortem and postmortem diagnosis. In 67.6% autopsies, gross findings matched with the histopathologic findings.

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Myoepithelioma of breast are extremely rare. We report two cases of pure malignant myoepithelioma of the breast, utilising light microscopic and immunohistochemical methods for diagnosis. Both the cases presented as breast lump. Hematoxylin and Eosin (H&E) stained microscopic sections revealed a predominantly spindle cell tumor. Immunohistochemical work up was done. Case number one expressed positivity for vimentin, Smooth Muscle Actin (SMA), S-100 and CD10. Case number two expressed positivity for Vimentin, CD10 and p63. This led to the diagnoses of malignant myoepithelioma in both of them. Documentation of such cases prospectively and from archival material, using immunohistochemistry, is of extreme importance to assess the prevalence, various phenotypic patterns, long-term biological behaviour and to establish management protocols for malignant myoepithelioma.

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Chryseobacterium meningosepticum is an uncommon pathogen causing meningitis. We report a case of adult meningitis caused by chryseobacterium meningosepticum in an 88 year old woman. Immunosuppression due to old age, diabetes mellitus and history of hypertension of 20 years duration were the concomitant factors. chryseobacterium meningosepticum was isolated both from the cerebrospinal fluid and blood cultures. This organism was sensitive to quinolones, rifampicin and resistant to many antibiotics commonly used for empiric therapy for meningitis.

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An unusual combination of two benign breast neoplasms adenomyoepithelioma and phyllodes tumor presenting as a solitary breast lump have been described. Both these tumors have tendencies to recur and have malignant potential. This patient also presented with a recurrent breast neoplasm. The case is reported for its rarity.

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Bilateral renal agenesis or Potter's Syndrome is an extremely rare congenital anomaly associated with oligohydramnios. The infants die off pulmonary hypoplasia. We herewith report five cases of Potter's Syndrome over a span of one year.

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Mast cells are known to be effector cells in various inflammatory reactions, but their role in appendicitis is unclear. The present study was undertaken to investigate the extent of mast cell involvement in appendicitis and evaluate their possible role. A total of 150 appendices including normal and inflamed appendices, were assessed for their histological changes and density of neutrophil, lymphocyte and eosinophil infiltration. The mast cells were counted in 1% toluidine blue-stained sections. It was found that eosinophil counts in all the layers were significantly low in normal appendices (P<0.01) and in chronic appendicitis (P<0.1) as compared to acute appendicitis. Mast cell counts were lowest in normal appendices, significantly higher in acute appendicitis (P<0.01) and highest in chronic appendicitis (P<0.001). Obstruction due to faecoliths or parasites were seen in only 20.1% and 2.1% of the inflamed appendices respectively. Hence a Type I hypersensitivity reaction with release of mediators by mast cells might be another triggering factor for the sequence of events leading to appendicitis.

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Nephrogenic adenoma is a rare benign tumour-like lesion within the urothelial mucosa of the urinary tract. It may be an incidental finding in bladder of a patient presenting with haematuria, dysuria and bladder growth after renal allograft transplant. Clinically it mimics bladder neoplasm. Definite diagnosis is established by histological examination of tumor. Though it attains an extensive spread in bladder mucosa and has a high tendency to recur, the clinical course is benign.

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The search for a perfect tumour marker, which would be able to distinguish benign from malignant enlargement of prostate accurately, is still not complete. Total Prostate Specific Antigen (TPSA), a good test, has it's own inadequacies but Free Prostate Specific Antigen (FPSA) to TPSA ratio is emerging as a better adjuvant to it. This prospective study was done to verify the utility of FPSA to TPSA ratio in diagnosis of malignancy of prostate and its relationship to Gleason grading (indicating the aggressiveness) of adenocarcinoma of prostate. 100 patients with urinary symptoms, who were above fifty years of age and had prostatic enlargement, formed the study group. TPSA and FPSA were assayed by ELISA method and FPSA to TPSA ratio was calculated. Prostatic biopsy of all the cases was obtained and diagnostic histopathology and Gleason grading (in cases where adenocarcinoma was diagnosed) was done. Sensitivity, specificity, predictive value of positive test and predictive value of negative test for TPSA and FPSA to TPSA ratio were calculated. They were found to be 100%, 76.7%, 74.1% and 100% for TPSA and 82%, 100%, 100%, 89% for FPSA/TPSA ratio. Thus making it very obvious that FPSA to TPSA ratio is an excellent adjuvant to TPSA for diagnosis of malignancy of prostate increasing the specificity and predictive value for positive test. An inverse correlation (correlation coefficient = -0.95) was also found between PSA ratio and aggressiveness of prostate cancer, pointing towards its capability to predict the histological (Gleason) grade of the tumour.

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Coronary atherosclerosis is the most frequent cause of ischemic heart disease. The composition and vulnerability of the atherosclerotic plaque determines the development of acute coronary syndromes. In this study, 224 advanced atherosclerotic plaques were identified from the main coronary arterial branches of 10 autopsy heart specimens. The plaques were classified by American heart association (AHA) and modified American heart association classification. Vulnerability of the plaques and factors influencing vulnerability were assessed. Vulnerable plaques were mostly of Type IV category of AHA classification and of thin cap fibroatheroma type by modified American heart association classification. Inflammation was more frequent and was of a higher grade in vulnerable plaques. Calcification was predominantly of mild grade.

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Splenic abscess due to tuberculosis is a rare condition and is mostly diagnosed in immuno-compromised hosts. A case of tuberculous splenic abscess detected incidentally after splenectomy without any underlying disease is reported in an immuno-competent patient.

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Gout, a chronic hyperuricemic crystal induced arthropathy, may produce soft tissue masses (tophi). Tophi may be found in synovial membranes, periarticular ligaments, tendons, soft tissues as well as internal organs. We present a case in which diagnosis of gout was made by fine needle aspiration of tophus. The patient had a painless nodule over right ankle which was progressively increasing in size. He gave a past history of painful arthropathy, but serum uric acid levels were within normal limits. At this juncture, FNAC of the ankle tophus was performed which revealed aggregated and innumerable dissociated needle-shaped negatively birefringent crystals of monosodium urate (MSU) on polarization microscopy.

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Tubular adenoma a 'pure adenoma' is a benign neoplasm of breast presenting clinically like fibroadenoma. We report cytological and histological features of tubular adenoma in a 24 year old female with brief review of literature.

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Six cases of tumoral calcinosis detected in a short period of time are reported. All the cases were in late adults and mostly in females. Most lesions were in inactive late stage. Available published literature on this rare interesting lesion has been reviewed. The etiopathogenesis and pathological features are discussed. It appears that the strict compartmentalization of lesions into different stages depending on the histological features and the importance of proliferating areas as a marker for progression and recurrence has been over emphasized.

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T cell lymphomas account for approximately 60% of cutaneous lymphomas. The annual incidence of cutaneous lymphoma is estimated to be from 0.5 to 1 per 1,00,000 persons per year. We present one case of cutaneous lymphoma, an eighteen year old male who presented with multiple swellings all over the body of one month duration. On examination, multiple, subcutaneous, mobile, non tender nodules were seen ranging from 0.5 cm to 5 cm in diameter. FNAC revealed non-Hodgkin's lymphoma morphologically in favour of cutaneous T-cell lymphoma. A biopsy and immunohistochemistry confirmed SPTCL.

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We report a case of female who presented with a lump in the right breast. Fine needle aspiration cytology of lump revealed numerous adult filarial worms. Common habitat of the adult filarial worms is the lymphatic vessels and lymph nodes of limbs and their occurrence in breast is uncommon.

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Hepatobiliary cystadenoma with mesenchymal stroma (HCMS) is a rare lesion characterized by multiloculated cyst lined by columnar epithelium ad mesenchymal stroma. It occurs exclusively in females and is intrahepatic in location with only 17% cases arising in extrahepatic biliary tree. Exact histogenesis is not known, but it is hypothesized the HCMS arises from ectopic embryonic tissue destined to form the adult gall bladder. HCMS has got a malignant potential and requires radical excision.

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Benign mucinous metaplasia of the prepuce is a rare and under recognized entity which can easily be mistaken for extramammary Paget's disease. It is characterized by the presence of benign mucin containing cells in the squamous epithelium. To the best of our knowledge only 6 such cases have been documented in the literature. We would like to report the first case in our country.

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9 years old male child presented clinically with thalassaemia intermedia phenotype. Investigations revealed hemolytic anaemia due to an unstable hemoglobin. Parents were found negative for the abnormal hemoglobin, suggesting a spontaneous mutation in the child. This is the third case of unstable hemoglobin to be reported from India. Clinically it is important that unstable hemoglobin should be suspected in a patient with thalassaemia intermedia phenotype even if both parents are haematologically normal.

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Angiogenesis plays an important role in the pathogenesis of haematological neoplasms and may be correlated with the prognosis. We recently evaluated the microvessel densities in trephine biopsy sections of seventeen patients of myelodysplastic syndromes (MDS). Of the 17 cases, 2 were RAEB-t, 3 were RAEB, one was RARS and 11 were of the subtype RA (FAB subtyping). The microvessel counts were measured in the bone marrow biopsy sections by immunohistochemical staining, using CD34 reactive monoclonal antibodies. MVD was significantly higher in the cases of RAEB and RAEB-t as compared to the cases of RA. The average MVD per x400 in the cases of RA was 5.7 +/- 4.7 with a median value of 4.65 (range 19) whereas it was 45.4 +/- 10.0 and 44.0 (range 27.3) respectively in RAEB and RAEB-t (p <.001), the 95% confidence interval being (2.94, 8.5) and (36.6, 54.3), for the two groups respectively. This finding may imply that subtypes of MDS with a higher tendency for converting to acute leukaemia are associated with increased angiogenesis as compared to other subtypes where the risk of progression to acute leukaemia is much lower.

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A 2-year-old boy presented with fever, recurrent infections and multiple skin lesions. He had anemia, eczematous skin lesions, cervical lymph node enlargement, hepatomegaly and lytic lesions on skull x-ray. The skin infiltrates were CD 68, CD 1a positive and S100 positive. He was diagnosed as disseminated langerhans cell histiocytosis. The occurrence of histiocytosis is reviewed and possible treatment is discussed.

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Fine needle aspiration cytology (FNAC) is a widely used diagnostic procedure to evaluate lesions in the salivary glands. Though regarded as a safe and reliable procedure ,a variety of histological changes following FNAC have been reported. We studied the FNAC related tissue changes in 50 neoplasms of the salivary gland and the impact on subsequent histological evaluation. FNAC induced changes were found in 34% (17/50) with needle tract (10/50)and infarction (7/50) as the commonest changes .These changes did not interfere with the subsequent histological evaluation of the tumours. We conclude that knowledge of a previous FNAC and awareness of its effects on histology may avoid potential misdiagnosis, though the incidence of significant changes is small.

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Gonadoblastomas are rare germ cell and sex cord stromal tumours, often associated with dysgerminomas. They occur almost entirely in patients with pure or mixed gonadal dysgenesis and in male pseudohermaphroditism. A 19 year old female was admitted in our hospital for evaluation of primary amenorrhoea. She had poor secondary sexual characters, left sided streak gonad and right sided ovarian tumour. Histopathology showed gonadoblastoma in streak gonad with contralateral dysgerminoma. This case is presented because of its rarity and clinical importance of recognizing such cases because of excellent prognosis.

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Nonalcoholic Steatohepatitis (NASH) is a progressive liver disease that has gained recognition in the last two decades. It may even account for some of the cases previously diagnosed as cryptogenic cirrhosis. Association of this entity,with obesity, insulin resistance and type II diabetes is well documented. In this review we clarify the terminology and describe the histological features associated with NASH. Criteria for diagnosis, grading and staging systems and role of liver biopsy is also discussed.

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250 patients with evidence of pulmonary tuberculosis and 50 nontubercular patients as a control group were subjected to Tuberculin test, Chest X-Ray, sputum microscopy, screening for HIV by ELISA and confirmation by Western blot if ELISA test was found positive. In the study group, 11 tested positive for HIV-1 and 239 tested seronegative, however, in the control group all patients were HIV seronegative. HIV infection was most prevalent in young males in the 21-40 year age group, with a history of tuberculosis, either residing, or working in an urban area away from their family. All our cases were of the HIV-1 serotype.

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To study abnormalities in liver associated enzymes and histology in AIDS patients with common infections like hepatotrophic viruses and mycobacteria. 30 cases of HIV/AIDS were studied for any significant pattern emerging. The male:female ratio was 4.26:1, occupation being long-distance truck drivers (30%); migrant goldsmiths (27%); migrant labourers (24%). Duration of illness from onset was within three months (46%) and the maximum duration was 26 months (2%). The most common presentation was fever (90%), weakness (79%), weight loss (62%) and diarrhoea (62%). The CD4 cell count was between 200-500/microL (33%). LFT showed hyperglobulinemia in patients having CD4 cell count <500/microL. Rise of alkaline phosphatase was seen in 63% with CD4 cell count <200/microL. 66.6% had HBsAg reactivity, 33.3% had positive anti-HCV antibody and 50% had abnormal liver histology. One third of these had systemic opportunistic infections like tuberculosis. No correlation could be made between hepatic histology and LFT.

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Fibromatosis is a group of disorders characterized by infiltrating fibroblastic proliferation. Among them Juvenile hyaline fibromatosis (J.H.F) is a rare, progressive, crippling autosomal recessive disorder diagnosed based on the characteristic clinicopathological findings of generalized cutaneous nodular lesions, gingival hypertrophy, flexion contractures of large joints with osteolytic lesions, and proliferating fibroblasts set within a hyalinized stroma. This disorder commonly manifests in childhood with family history of consanguinity and in siblings. A case of seven year old boy born to consanguinous parents is reported who presented with multiple subcutaneous nodules and gingival hypertrophy. Histopathological examination revealed proliferating fibroblasts embedded in an abundant homogeneous eosinophilic hyalinized matrix. The matrix showed PAS stain positivity, supporting the pathogenesis of this disorder as an inborn error of glycosaminoglycans metabolism. The differential diagnosis is discussed and the literature reviewed.

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Hypertrophic pachymeningitis (HP) is a rare chronic inflammatory process that causes thickening of the dura leading to compressive myelopathy. HP has diverse etiologies like infections, chronic inflammatory processes, collagen vascular diseases and malignancy. We report one such case of HP who presented with compressive myelopathy, underwent decompressive surgery and died due to complications of surgery with the original disease process.

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Undifferentiated carcinoma of salivary glands is too poorly differentiated to be classified as any of the specific group of carcinomas. This is a rare disease, the incidence of which is rather low-to-very low in the Indian subcontinent. The tumor can assume an aggressive clinical behavior characterized by disseminated metastases. The prognosis is rated as dismal; as evidenced by this clinical report of a tumor in the submandibular salivary gland with synchronous metastases to the skull bones and in to the intracranial fossa. The putative relationship of the tumor to Epstein-Barr virus (EBV) infection is discussed.

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Endometriosis is a well-known precursor lesion of ovarian malignancies, particularly those of endometrioid and clear-cell types and rarely of serous or mucinous types. The association of endometriosis with mucinous borderline tumors also varies. This case is of a 60 year old female, who had a long history of more than thirty years of endometriosis and developed recurrent endocervical-like mucinous borderline tumor (ELMBT) in endometriotic foci. This case highlights challenges in the management of such complications associated with endometriosis and emphasizes the importance of long-term follow-up in cases of endometriosis.

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Cryptococcus neoformans has emerged as an important opportunistic fungal pathogen in immunocompromised individuals. The therapeutic options of C. neoformans an opportunistic fungal pathogen include flucytosine, amphotericin B, and azole agents. However in the present scenario, emergence of resistance has been reported, hence this study was undertaken to evaluate antifungal susceptibility pattern of C. neoformans isolates from this southern part of India. Ten isolates of C. neoformans were tested against Amp B and fluconazole, of which 7 were susceptible to both and a single isolate of C. neoformans var gatti was resistant to both with MIC of 32mg/ml and 64mg/ml respectively.

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Placental site trophoblastic tumour is a rare form of gestational trophoblastic disease, which seldom metastasizes. It is chemoresistant though has an excellent prognosis after complete resection of the tumour. Its characterization is thus important for treatment and further management. We present an unusual case who presented with ascites of non-neoplastic origin and was found to have metastases to the lymph node.

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In the growing knowledge of rare interesting tumors, the cotyledonoid leiomyoma is a tumor with an alarming appearance, of benign nature, but dealt with undue severity. We report a case of cotyledonoid leiomyoma in a 40 yr old female who presented with urinary retention and in whom a clinical diagnosis of uterine fibroid was made. On laparotomy, friable nodules were seen in the lower part of the uterus. Hence the diagnosis of sarcoma was considered and total abdominal hysterectomy with unilateral salpingo-oopherectomy was done. The friable nodules were removed piecemeal. Microscopic examination revealed nodules of bland looking smooth muscle cells arranged in-interlacing fascicles with perinodular hydropic degeneration. Necrosis or nuclear atypia was not seen. Increased awareness of this grossly alarming variant of benign leiomyoma can help avoid over treatment.

[ABSTRACT]   Full text not available    [CITATIONS]  [PubMed]

A 56 year old male presented with painless subareolar lump in the left breast was subsequently diagnosed as invasive lobular carcinoma. This case is reported in view of its rarity.

[ABSTRACT]   Full text not available    [CITATIONS]  [PubMed]

We report a 43-year-old female, with acute promyelocytic leukemia occurring after 9 months of treatment for carcinoma breast. The diagnosis of APL was made on morphology, cytogenetics and molecular studies. In contrast to other published report of therapy related APL (tAPL) the present case presented early after the primary malignancy and underwent a rapid, downhill course.

[ABSTRACT]   Full text not available     [PubMed]

Heavy metal inhalation is a rare cause of acute lung injury. Among the various heavy metals, cadmium is more commonly known to cause acute lung injury. A case of accidental inhalation of cadmium fumes in a young male is presented. The incident occurred in local silver jewellery manufacturing unit.

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