Publications by authors named "Gayathri P Amonkar"

Background: Stroke is an important cause of mortality with intracranial atherosclerosis as an important risk factor. Geographical variation in the pattern of atherosclerosis is well documented with various studies in stroke patients showing that African Americans and Japanese people tend to have intracranial vascular occlusion, whereas Caucasians more often have extracranial atherosclerotic lesions.

Methods: This is a prospective study of 50 cases of Indian elderly patients over 60 years of age where we have studied the CNS vasculature in detail including intracranial atherosclerosis with regards to its incidence, severity, distribution, plaque composition and associated risk factors.

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A case of infective endocarditis of a dysplastic pulmonic valve along with atrial septal defect has been described. Right-sided endocarditis has now increased in frequency because of cardiac invasive procedures and intravenous drug abuse. Although the tricuspid valve usually bears the brunt of right-sided endocarditis, there have now been increasing reports of pulmonary valve infective endocarditis.

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Background: India accounts for the highest number of TB cases globally (almost one-fifth of the global burden and almost two-thirds of the cases in South East Asia. Furthermore, the development of drug resistance of varying levels such as multi-drug resistant TB (MDR-TB), extensively-drug resistance TB (XDR-TB) and total-drug resistant TB (TDR-TB) has been on the increase, and now India also features in the 27 high-MDRTB-burden countries. Almost parallel to these developments, in the last few years, we have been encountering less common morphological forms of pulmonary TB (PTB) at autopsies.

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Context: In this autopsy study, the various morphological patterns of acute respiratory distress syndrome (ARDS) have been analyzed and compared along with their etiopathogenesis.

Aims: We aimed to study the prevalence and clinicopathological correlation of ARDS based on age, gender, hospital stay, symptoms, clinical diagnosis, gross, and microscopy findings.

Subjects And Methods: Total 130 cases of ARDS were studied over a period of 5 years.

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Bednar tumor is an uncommon variant of dermatofibrosarcoma protuberans. Also known as pigmented dermatofibrosarcoma protuberans, this tumor is of intermediate grade. It is seen in adults and has a predisposition to affect the shoulder region.

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Miliary multi-focal bilateral pulmonary adenocarcinoma with lepidic predominant pattern is an unusual morphological presentation and is seen in females who are non-smokers. This gross morphology can be confused with infectious diseases, like tuberculosis, histoplasmosis or with pulmonary metastasis.

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Primary salivary gland-type tumors of the lung and airways being unusual, they pose a diagnostic challenge on small biopsies and are usually consigned as non-small cell lung carcinomas. Since the clinical behavior of these tumors is different from the conventional lung tumors, it is important to accurately diagnose them. Among this category of tumors, adenoid cystic carcinoma (ACC) of the lungs and airways is exceedingly rare.

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Mitral valve prolapse (MVP) is usually asymptomatic, but can be associated with complications such as infective endocarditis, mitral regurgitation, thromboembolism and sudden cardiac death. It has been very rarely reported to occur in association with other valvular involvement. A 55-year-old male patient was brought dead and at autopsy the mitral valve orifice was stenotic and the leaflets were enlarged, myxoid and bulging suggestive of MVP and chordae tendinae were thickened, stretched and elongated.

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Pulmonary tumor thrombotic microangiopathy (PTTM) is a highly fatal complication of cancer leading to acute cor pulmonale and pulmonary hypertension. We present a case of 47-year-old male patient who developed acute breathlessness and died suddenly. The pulmonary vessels at autopsy on histopathologic examination showed the presence of fibrocellular intimal proliferation, fibrin thrombi and few tumor emboli consisting of malignant adenocarcinoma cells.

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Rupture of the myocardium due to myocardial infarction is often fatal but when such patients survive, they present with a pseudoaneurysm where the defect is sealed by the pericardium preventing the complete rupture. This is described as a 'contained myocardial rupture'. We describe here a case of left ventricular contained myocardial rupture following an acute myocardial infarction.

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Pulmonary ossification is a rare phenomenon which has been observed in the lungs of patients with chronic obstructive pulmonary disease, pulmonary fibrosis, and tuberculosis. It has also been observed as a part of aging process. Approximately 130 cases of pulmonary ossification have been reported in literature so far.

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Antiphospholipid antibody syndrome is a very important cause of cerebral infarction, myocardial infarction, and repeated pregnancy losses in women. We present an extremely rare case of a 44-year-old man with antiphospholipid syndrome who collapsed and died suddenly. At autopsy, he was found to have both cerebral and myocardial infarction.

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Background/aim: In leptospirosis, although cardiac involvement in the form of ECG changes and myocarditis is known, it is not considered to be significant. This study analysed cardiac changes in leptospirosis.

Methods: Twenty-four hearts from patients who had died from leptospirosis were studied.

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Primary intra-cardiac tumors are rare. Most of them are benign. Of the benign tumors, myxomas are the most common.

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Mucinous adenocarcinoma of the renal pelvis is an extremely rare tumor with very few case reports in literature. Pseudomyxoma peritonei is an uncommon condition characterized by the presence of mucinous gelatinous material in the peritoneal cavity. It occurs secondary to primary mucinous neoplasms of particularly the appendix and the ovary.

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Primary tumors of the heart are exceedingly rare with a prevalence rate of around 0.01% in autopsy studies. A majority of primary cardiac tumors are benign.

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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.

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Apocrine glands are tubular glands, which function as scent glands. These are found at only a few sites like the axillae and anogenital region. They are present as modified glands in the external ear canal (ceruminous glands), in the eyelid (Moll's glands) and in the breast (mammary glands).

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Infective endocarditis of the cardiac valves mainly involves the aortic mitral valves and less frequently the tricuspid valve. Isolated pulmonary valve involvement is extremely rare with few cases reported in literature. We present a case of a 34-year-old female who presented with sudden onset breathlessness and cardiac failure.

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Primary tumors of the heart are extremely rare, with a prevalence rate of around 0.01% in collective autopsy studies. Majority of the primary cardiac tumors are benign.

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