| 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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| sarcoma, synovial | A malignant neoplasm arising from tenosynovial tissue of the joints and in synovial cells of tendons and bursae. The legs are the most common site, but the tumour can occur in the abdominal wall and other trunk muscles. There are two recognised types: the monophasic (characterised by sheaths of monotonous spindle cells) and the biphasic (characterised by slit-like spaces or clefts within the tumour, lined by cuboidal or tall columnar epithelial cells). These sarcomas occur most commonly in the second and fourth decades of life. (12 Dec 1998) |
| sarcomastigophora | A phylum of protozoa with a single-type nucleus and locomotion by flagella, pseudopodia, or both types of locomotor organelles. It comprises the subphyla mastigophora, opalinata, and sarcodina. (12 Dec 1998) |
| sarcomastigophora infections | Infections with protozoa of the phylum sarcomastigophora. (12 Dec 1998) |
| sarcomatoid | Resembling a sarcoma. Origin: sarcoma + G. Eidos, resemblance (05 Mar 2000) |
| sarcomatoid carcinoma | <tumour> A carcinoma composed of elongated cells, frequently a poorly differentiated squamous cell carcinoma which may be difficult to distinguish from a sarcoma. Synonym: sarcomatoid carcinoma. (05 Mar 2000) |
| sarcomatosis | Occurrence of several sarcomatous growths on different parts of the body. Origin: sarcoma + G. -osis, condition (05 Mar 2000) |
| sarcomatous | <medicine> Of or pertaining to sarcoma; resembling sarcoma. Source: Websters Dictionary (01 Mar 1998) |
| Rous sarcoma | <tumour> A fibrosarcoma, originally observed in a Plymouth Rock hen, now thought to be an expression of infection by certain viruses of the avian leukosis-sarcoma complex in the family Retroviridae. Synonym: avian sarcoma, Rous tumour. (05 Mar 2000) |
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| Rous sarcoma virus | <virology> The virus responsible for the classic first cell free transmission of a solid tumour, the chicken sarcoma, first reported by Rous in 1911. An avian C type oncorna virus, original source of the src oncogene. (18 Nov 1997) |
| Rous sarcoma virus protease | <enzyme> Has been sequenced; crystallographic structure has been determined Registry number: EC 3.4.23.- Synonym: protease, rous sarcoma virus, rous sarcoma virus aspartic protease (26 Jun 1999) |
| Moloney murine sarcoma virus | <molecular biology, virology> Replication defective retrovirus, source of the oncogene v mos, responsible for inducing fibrosarcomas in vivo and transforming cells in culture. (18 Nov 1997) |
| moloney sarcoma virus | A replication-defective murine sarcoma virus (sarcoma viruses, murine) isolated from a rhabdomyosarcoma by moloney in 1966. (12 Dec 1998) |
| multiple idiopathic haemorrhagic sarcoma | <oncology, tumour> A type of vascular cancer characterised by soft purple nodules that usually develop first on the feet and then slowly spread across the skin.This cancer is most often found in people with compromised immune systems, such as AIDS patients. (09 Oct 1997) |
| murine sarcoma virus | A seemingly defective retrovirus that produces sarcomas in mice when growing in the presence of a "helper" virus; e.g., mouse leukaemia virus. (05 Mar 2000) |
| myelogenic sarcoma | <tumour> Sarcoma originating in the bone marrow. (05 Mar 2000) |
| myeloid sarcoma | <tumour> A malignant tumour of immature myeloid cells, frequently subperiosteal, associated with or preceding granulocytic leukaemia. See: chloroma. Synonym: myeloid sarcoma. (05 Mar 2000) |
| porcine sarcoma virus | A retrovirus causing sarcoma in swine. (05 Mar 2000) |
| Harvey sarcoma virus | <oncogene> One of a family of oncogenes, first identified as transforming genes of Harvey and Kirsten murine sarcoma viruses. (Name from rat sarcoma because Harvey virus, though a mouse virus, obtained its transforming gene during passage in a rat). Transforming protein coded is p21ras, a GTP-binding protein with GTPase activity, that resembles regulatory G-proteins. (18 Nov 1997) |
| herpes virus, kaposi sarcoma-associated | Species of an unnamed genus, subfamily gammaherpesvirinae, isolated from patients with aids-related and "classical" kaposi sarcoma. The sequences suggest this is a new human herpes virus, unofficially identified as human herpes virus-8 (hhv-8). (12 Dec 1998) |
| pulmonary artery sarcoma | <radiology> Rare, age: 21 - 80 (most common: 45 - 55), usual presentation: hilar mass or hilar infiltrative lesion, other findings: decreased vascular markings, atelectasis / volume loss, metastatic nodules, decreased or absent perfusion on V/Q, intravascular soft-tissue mass on CT (12 Dec 1998) |
| soft tissue sarcoma | A sarcoma that begins in the muscle, fat, fibrous tissue, blood vessels, or other supporting tissue of the body. Not a type of bone cancer. (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) |