| GCN | geometric constraint network; giant cerebral neuron |
|---|---|
| GFL | giant follicular lymphoma |
| GLH | germinal layer hemorrhage; giant lymph node hyperplasia |
| GLNH | giant lymph node hyperplasia |
| GM | gastric mucosa; Geiger-Muller [counter]; general medicine; genetic manipulation; geometric mean; gia... |
| occult carcinoma | <tumour> A small carcinoma, either asymptomatic or giving rise to metastases without symptoms due to the primary carcinoma. (05 Mar 2000) |
|---|---|
| oesophageal carcinoma | <radiology> EtOH, tobacco, achalasia, Plummer-Vinson syndrome, stricture (caustic, radiation), Barrett mucosa (GE reflux, hiatus hernia), tylosis, geographical areas: Iran, China, southern France, Japan, head/neck carcinoma <strong>not</strong> Sprue / coeliac disease (12 Dec 1998) |
| oesophageal carcinoma risk factors | <radiology> P Plummer-Vinson Web, A achalasia, alcohol, B Barrett oesophagus, S stricture, T tylosis, tobacco see: oesophageal carcinoma (12 Dec 1998) |
| oesophageal carcinoma: types | <radiology> Histologic types: squamous cell carcinoma (95%), adenocarcinoma (4%), 70% from Barrett oesophagus, carcinosarcoma = pseudosarcoma = spindle cell squamous cell carcinoma, usually middle 1/3 of oesophagus, large, polypoid, smooth, intramural mass; may be pedunculated, mucoepidermoid carcinoma, adenoid cystic carcinoma radiologic types: polypoid/fungating form (most common), sessile/pedunculated tumour with lobulated surface, applecore lesion, ulcerating form, infiltrating form, gradual narrowing with smooth transition (Differential diagnosis: benign stricture), varicoid form: superficial spreading carcinoma, thickened nodular tortuous longitudinal folds (Differential diagnosis: varices) (12 Dec 1998) |
| oncoplastic carcinoma | <tumour> Obsolete term for an undifferentiated carcinoma showing no evidence by light microscopy of origin from a specific epithelial tissue, e.g., squamous or glandular epithelium. (05 Mar 2000) |
| thyroid carcinoma | <radiology> Papillary-follicular (75%), well-differentiated, 95% 5-yr survival with treatment, papillary may lead to neck nodes, follicular may lead to lungs, bone (haematogenous), anaplastic (20%), older patients, prognosis poor, medullary (5%), C cells, associated with pheochromocytoma (MEN-2 and MEN-3) see also: hot and cold nodules on radionuclide studies, risk factors (12 Dec 1998) |
| thyroid carcinoma risk factors | <radiology> Increased risk of malignancy: young female, male, history of radiation to head or neck, hard lesion, other neck masses, no shrinkage on TSH, family hx of thyroid carcinoma see: thyroid carcinoma (12 Dec 1998) |
| embryonal carcinoma | <tumour> A malignant neoplasm of the testis, composed of large anaplastic cells with indistinct cellular borders, amphophilic cytoplasm, and ovoid, round, or bean-shaped nuclei that may have multiple large nucleoli; in some instances, the neoplastic cells may form tubular structures; embryonal carcinoma's may be malignant teratomas without differentiated elements. (05 Mar 2000) |
| trabecular carcinoma | A rare malignant cutaneous tumour seen in sun-exposed skin of elderly patients composed of dermal nodules of small round cells with scanty cytoplasm in a trabecular pattern; the tumour cells contain cytoplasmic dense core granules resembling neurosecretory granules seen in Merkel cells. Synonym: primary neuroendocrine carcinoma of the skin, trabecular carcinoma. (05 Mar 2000) |
| encephalomyelitis associated with carcinoma | An encephalomyelopathy as a remote effect of carcinoma, most often oat cell carcinoma of the lung; characterised by extensive nerve cell loss, which may be diffuse, but often predominates in particular portions of the central nervous system, particularly the limbic lobes, medulla, cerebellum, and gray matter of the spinal cord. Synonym: carcinomatous encephalomyelopathy, encephalomyelitis associated with carcinoma, paracarcinomatous encephalomyelopathy. (05 Mar 2000) |
| endometrial carcinoma | <oncology, tumour> A malignant cancer which arises from the cells which line the uterus. (27 Sep 1997) |
| endometrioid carcinoma | <tumour> Adenocarcinoma of the ovary or prostate resembling endometrial adenocarcinoma, possibly arising from ovarian foci of endometriosis. (05 Mar 2000) |
| epidermoid carcinoma | A type of lung cancer in which the cells are flat and look like fish scales. Also called squamous cell carcinoma. (12 Dec 1998) |
| epithelial carcinoma | Cancer that begins in the cells that line an organ. (12 Dec 1998) |
| epithelial myoepithelial carcinoma | <tumour> A salivary gland malignancy composed of an inner layer of ductal cells surrounded by a layer of clear myoepithelial cells. (05 Mar 2000) |