Biomedical subjects
Publications and source records attributed to Pradeep Vaideeswar.
Aortoarteritis presenting with isolated bilateral coronary artery ostial stenosis is a serious but rare condition. This letter emphasizes on a very atypical presentation of aortoarteritis and also distinct but unusual form of angiographic findings involving total occlusion of left main coronary artery from the ostium and tight ostial right coronary artery stenosis that had a fulminant disease course.
We report a paradoxical occurrence of left ventricular thrombus due to endomyocardial fibrosis in a six years male child diagnosed as Glanzmann thrombasthenia. Such an association has not been reported in literature.
Pulmonary arterial endarteritis is a rare event even in patients with congenital heart disease. In this paper, the authors report two cases of pulmonary endarteritis diagnosed at autopsy. The first was a 3-month-old male infant with absence of congenital heart defect (who had had neonatal sepsis). This patient presented with pneumonia and succumbed within 36 hours of hospital stay despite appropriate antimicrobial therapy and supportive management. The second patient was a 13-month-old male child with previously undiagnosed tetralogy of Fallot who had clinical presentation of acute meningitis with convulsions and succumbed within 12 hours of hospital stay despite adequate treatment. The main autopsy findings were chronic arteritis of the pulmonary trunk and right pulmonary artery in the former and rupture of the pulmonary trunk in the latter.
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.
Primary pulmonary choriocarcinoma is a rare manifestation of extra-genital malignant germ cell tumour. This is a report of seven such cases, seen in autopsy and surgical materials in a span of 20 years. The age range was from 25 to 60 years, affecting six women and one male. These are aggressive tumours requiring prompt therapy. Only one among the seven survived.
Pulmonary vascular involvement in the natural course of spread of malignant tumours can produce respiratory distress and often manifests as lymphangitis carcinomatosis or carcinomatous arteriopathy. Pulmonary infarction due to arterial tumour embolism is infrequent. This is a report of a treated case of cervical cancer in middle-aged woman who presented after three years with infarction of the lungs following arterial tumour emboli.
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Among the surgically excised or biopsied sinonasal tumours in a span of ten years, the neurogenic tumours formed 6.7% of all sinonasal tumours. They were eight in number, three schwannomas, two neurofibromas and three malignant schwannomas with occurrence in a wide age range and no gender predilection. Nasal obstruction and epistaxis were common modes of presentation with a unilateral location. The diagnosis of benign neurogenic tumours do not pose difficulty. However, malignant schwannoma should be considered when one encounters a cellular spindle cell lesion in sinonasal region.
Atypical coarctation of the aorta refers to narrowing (discrete or diffuse) that involves the thoracic or abdominal segments. Such a phenomenon has never been reported in the inferior vena cava. This is a report of combined coarctation of the abdominal aorta and inferior caval vein in a still birth with sirenomelia, ambiguous genitalia, and other extracardiac anomalies. The maternal serum was positive for Toxoplasma and CMV. Evidence of phlebitis was present in the inferior caval vein.
Inversion of the left atrial appendage is a rare phenomenon and frequently occurs as a complication following cardiac operations. Spontaneous inversion is even rarer, and so far, only three cases have been reported. We report an additional case of spontaneous inversion in 4-month female with Down's syndrome, hypothyroidism, and complete atrioventricular canal defect.
We report a rare malignant small round cell tumor of the heart in a 26-year-old woman. She had been symptomatic 15 days after vaginal delivery. Immunohistochemistry revealed divergent differentiation; hence, the tumor was designated as desmoplastic small round cell tumor. This is the first report of such a tumor in the heart.
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BACKGROUND: Rheumatic heart disease continues to be an important cardiac problem, afflicting the young population of India. Though prophylaxis and various treatment modalities are available for the valvar pathology, mortality and morbidity continue to be high. Autopsy data are scarce. METHODS AND RESULTS: This is an autopsy analysis of rheumatic heart disease as seen at a large teaching hospital over a period of 5 years in the past decade. Four hundred thirty-four cases were autopsied in a five-year period from 1993 to 1997. The majority of cases were between 16 and 40 years of age. Fifty cases showed the presence of Aschoff bodies indicating a recent attack of rheumatic carditis. One hundred seventy-eight valves were examined in detail--in 174, the mitral valve was involved. In 4 cases, only the aortic valve was affected. The mitral valve showed significant disease with a severe degree of subvalvar pathology. One hundred thirty-eight patients had already undergone some form of previous surgery and presented with valve dysfunction. Most of these patients were in the third and fourth decades of life. The most frequent cause of death in operated and unoperated cases was congestive cardiac failure. CONCLUSIONS: There is no decrease in the incidence or severity of rheumatic heart disease over a period of 25 years as seen at our institute. The pattern of the disease has changed, with patients who had a previous surgery now returning with valve dysfunction or related problems.