| sarcoma, small cell | A sarcoma characterised by the presence of small cells, cells measuring 9-14 micrometers with a faint or indistinct rim of cytoplasm and an oval-to-elongated nucleus with relatively dense chromatin. (12 Dec 1998) |
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| giant cell monstrocellular sarcoma of Zulch | A histologic form of glioblastoma with large, often multinucleated, bizarre, tumour cells. Synonym: giant cell monstrocellular sarcoma of Zulch. (05 Mar 2000) |
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| giant cell sarcoma | <tumour> A malignant giant cell tumour of bone. (05 Mar 2000) |
| reticulum cell sarcoma | <tumour> Obsolete term for histiocytic lymphoma. (05 Mar 2000) |
| round cell sarcoma | <tumour> Old term for an undifferentiated malignant neoplasm, believed to be of mesenchymal origin, composed chiefly of closely packed round cells. (05 Mar 2000) |
| sarcoma cell | Cells of a malignant tumour derived from connective tissue. Often given a prefix denoting tissue of origin, for example osteosarcoma (from bone). (18 Nov 1997) |
| sarcoma, clear cell | A sarcoma of young, often female, adults of the lower extremities and acral regions, intimately bound to tendons as circumscribed but unencapsulated melanin-bearing tumours of neuroectodermal origin. An ultrastructural finding simulates flattened and curved barrel staves, corresponding to the internal structures of premelanosomes. There is a 45-60% mortality in clear cell sarcoma. (12 Dec 1998) |
| spindle cell sarcoma | <tumour> A malignant neoplasm, believed to be of mesenchymal origin, composed of elongated, spindle-shaped cells. Synonym: fascicular sarcoma. (05 Mar 2000) |
| carcinoma, non-small-cell lung | A heterogeneous aggregate of at least three distinct histological types of lung cancer, including squamous cell carcinoma, adenocarcinoma, and large cell carcinoma. They are dealt with collectively because of the shared properties of poor response to conventional chemotherapy and the potential for cure with surgical resection in a fraction of patients. (12 Dec 1998) |
| carcinoma, small cell | An anaplastic, highly malignant, and usually bronchogenic carcinoma composed of small ovoid cells with scanty neoplasm. It is characterised by a dominant, deeply basophilic nucleus, and absent or indistinct nucleoli. There are admixtures of small cell lung carcinoma with other types of lung cancer. Small cell carcinomas are distinguished by their distinctive biological features, response to chemotherapy and radiotherapy, and by their nearly universal tendency to develop overt or subclinical metastases, which frequently eliminates surgery in most patients. (12 Dec 1998) |
| small cell carcinoma | <oncology, tumour> Common malignant neoplasm of bronchus. Cells of the tumour have endocrine like characteristics and may secrete one or more of a wide range of hormones, especially regulatory peptides like bombesin. (18 Nov 1997) |
| small cell lung cancer | A type of lung cancer in which the cells are small and round. Also called oat cell lung cancer. (12 Dec 1998) |
| small cleaved cell | A lymphoid cell of follicular centre cell origin that has an irregularly shaped nucleus with clumped chromatin, absent nucleoli, and one or more clefts in the nuclear membrane. (05 Mar 2000) |
| diffuse small cleaved cell lymphoma | <tumour> A diffuse poorly differentiated lymphocytic lymphoma; follicular centre cell lymphoma that lacks a follicular pattern; malignancy is of intermediate grade. (05 Mar 2000) |
| follicular predominantly small cleaved cell lymphoma | <tumour> A B-cell lymphoma with nodular or diffuse lymph node or bone marrow involvement by large lymphoid cells. Synonym: follicular predominantly small cleaved cell lymphoma, nodular histiocytic lymphoma. (05 Mar 2000) |
| lymphoma, small-cell | A B-cell lymphoma presumably representing a tumour of interfollicular B-lymphocytes that may be functional. Those that are secrete identical immunoglobulin molecules. (12 Dec 1998) |