Accreditation: IAPM-National Board for Laboratory Medicine.
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Biomedical subjects
Publications and source records attributed to S Ranga.
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A total of 148 surgically removed benign and malignant breast lesions were studied to correlate cytomorphologial features in impression smears and histopathological sections. Mammograms were taken prior to surgery. Role of mammography in detection of non-palpable breast lesions was enlightened. Impression smears helped in quick diagnosis (intraoperative) and overall accuracy obtained was 97.4%. Cluster predominant and Grade II nuclear grading on smear pattern was seen in 58.8% and 57.4% cases respectively amongst the 68 malignant cases. 45% cases revealed non-palpable breast lesions on mammography which was later confirmed on histopathology.
A case of multiple myeloma associated with HIV disease and hepatosplenomegaly presented to us as pyrexia of unknown origin, is reported. Because of paucity of such cases in the literature, the case is dealt in detail and the literature reviewed briefly.
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A total of 62 patients of gastric carcinoma were studied to find a correlation between newer prognostic indicators like cell proliferative indices including Nucleolar Organizer regions (AgNORs), Ki 67 Labelling Index and Epidermal Growth Factor Receptor (EGFR) expression with the various, histopathological criteria and compared with 30 controls of non neoplastic gastric diseases. EGFR expression was positive in 48(77.4%) cases. The Ki 67 labelling indices ranged from 0 to 50% with a mean of 21.35 +/- 17.88% among the cases. AgNOR counts ranged from 1.64 to 4.49 with a mean of 3.41 +/- 0.81 among the cases. Positive EGFR expression correlated strongly with differentiation of the tumour, poorly differentiated tumours showing a higher positivity. EGFR positivity also showed good correlation with metastasis as well as with the invasiveness of the tumour. Ki 67 labelling indices correlated significantly with metastatic status, microscopic types and degree of differentiation of the tumour. A strong correlation was observed between AgNOR counts and metastasis as well as the microscopic type of the tumour. EGFR expression correlated strongly with Ki 67 scores and weakly with AgNOR counts among the patients of gastric carcinoma.
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