PubMed Health⌕ Search

Biomedical subjects

K Masih

Publications and source records attributed to K Masih.

10 recordsLinked to original sources

Teratocarcinosarcoma of the paranasal sinuses: a clinicopathologic and immunohistochemical study.

We report four cases of sinonasal teratocarcinosarcoma (SNTCS), a rare malignant tumor that displays combined features of an immature or malignant teratoma and a carcinosarcoma. The patients, three men and one woman, were all adults ranging in age from 21 to 69 years who presented with nasal obstruction and epistaxis. The tumors were typically composed of round cells and short spindle cells with neuroectodermal/rosette-like structures. Also seen were foci of fetal-like squamous epithelium, glandular epithelium, immature mesenchyme, immature cartilage, and neuronal differentiation. Immunohistochemistry performed in three cases showed expression of vimentin, CD99 (MIC2), and neuron-specific enolase in most cells, and focal expression of cytokeratin, epithelial membrane antigen, alpha fetoprotein, glial fibrillary acidic protein, chromogranin, and synaptophysin. The tumors were consistently negative for beta human chorionic gonadotrophin, neurofilament protein, and leukocyte common antigen. The entities considered in the differential diagnosis were poorly differentiated carcinomas, sarcomas, and olfactory neuroblastoma. We suggest that these neoplasms arise from a primitive cell capable of organized divergent differentiation.

12E7 Antigen↗

Hodgkin's disease: a clinicopathologic study.

One hundred and four cases of Hodgkin's disease diagnosed between July 1981 and June 1991 have been analysed. There was a definite male preponderance. Majority of the patients (82.7%) were below the age of 50 years. Mixed cellularity was the most common type (57.7%). It was followed by both nodular sclerosis and lymphocyte predominant types (16.3% each). Lymphocyte depletion Hodgkin's disease, the most aggressive variant, was the least common (9.7%). The detailed observations, as compared to the previous studies in this region as well as in other parts of the world have been presented and discussed.

Adolescent↗

Gonadal teratomas: a study of 206 cases.

Total 206 gonadal teratomas were diagnosed in Christian Medical College and Hospital, Ludhiana from January 1980 to December 1990. 182 of them were in ovary and other 24 in testis. Majority of them i.e. 45.1% of ovarian and 45.8% of testicular lesions were seen in third decade. On gross examination 161 (88.4%) of ovarian tumours were cystic one (0.5%) was completely solid, while 20 (10.9%) showed solid as well as cystic areas. Majority (93.9%) of them were mature teratomas; 27 (14.8%) being dermoid cysts. In testicular lesions 22 (91.7%) were solid as well as cystic type and 2 (8.3%) were purely solid. Twenty (83.3%) of them were immature and only 4 (16.7%) lesions showed benign histology.

Adolescent↗

Teratomas of rare sites: a review of ten cases.

Out of 267 cases of teratomas diagnosed in the department of pathology, Christian Medical College and Hospital, Ludhiana, Punjab from January 1980 to December 1989, 10 cases occurred in rare sites ie, 3 cases of teratoma in retroperitoneal space, 3 in the floor of the mouth, one each in mediastinum, thyroid, urinary bladder and kidney. None of these cases was clinically suspected as teratoma. One of the 3 teratomas of the retroperitoneal space and that of kidney were solid. Lesions of mediastinum and urinary bladder were solid as well as cystic. All these teratomas showed foci of immature elements. All other tumours were cystic and contained mature tissues only. Teratomas of the thyroid and kidney were treated with subtotal thyroidectomy and nephrectomy respectively, rest had surgical resection. One patient of immature retroperitoneal teratoma was lost to follow-up. All the others are alive and well for the period of 1 to 8 years. None had recurrence.

Adolescent↗