PATHOLOGY ASSIGNMENT
T.GOWTHAMI ROLL NO:132 PATHOLOGY ASSIGNMENT TOPIC: THYMUS TUMOURS, HYPOTHALAMUS TUMOURS, MALIGNANT ENDOCRINE NEOPLASIA. THYMUS TUMOURS: A thymoma is a type of tumour or growth in the thymus gland. Thymic tumors are tumors of the thymus gland. ✓Most thymomas have the potential to behave like a cancer and spread beyond the thymus, but many appear to behave in a benign fashion and are noninvasive. ✓Less commonly, it appears to have spread beyond the thymus. People sometimes refer to such an invasive thymoma as malignant. MORPHOLOGIC FEATURES: ✓The tumour is a spherical , measuring 5-10 cms in diameter with an average weight of 150 gm. ✓The tumour has a thick fibrous capsule from which extend collagenous septa into the tumour dividing it into lobules . ✓The tumour consists of neoplastic epithelial cells and variable number of non-neoplastic lymphocytes. GENETIC ABNORMALITIES: ✓They are common in thymoma,most commonly affecting chromosome 6. ✓Thymomas ...
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