| tumor | 1. <oncology> An abnormal mass of tissue that results from excessive cell division that is uncontrolled and progressive, also called a neoplasm. Tumours perform no useful body function. They may be either benign (not cancerous) or malignant. 2. Swelling, one of the cardinal signs of inflammations, morbid enlargement. Origin: L. Tumere = to swell (12 May 1997) |
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| tumor marker | <investigation, oncology> A substance in the body that usually indicates the presence of cancer. These markers are usually specific to certain types of cancer and are usually found in the blood or other tissue samples. Examples are alphafetoprotein (AFP), human chorionic gonadotropin, and lactate dehydrogenase (LDH). They may be indicators of tumour stage and grade as well as useful for monitoring responses to treatment and predicting recurrence. Many chemical groups are represented including hormones, antigens, amino and nucleic acids, enzymes, polyamines, and specific cell membrane proteins and lipids. (18 Jul 2002) |
| tumor necrosis factor | <cytokine> Originally described as a tumour inhibiting factor in the blood of animals exposed to bacterial lipopolysaccharide or Bacille Calmette-Guerin. Preferentially kills tumour cells in vivo and in vitro, causes necrosis of certain transplanted tumours in mice and inhibits experimental metastases. Human Tumour Necrosis factor alpha is a protein of 157 amino acids and has a wide range of pro inflammatory actions. Usually considered a cytokine. Synonym: cachectin. Acronym: TNF (13 Nov 1997) |
| fibroid | <gynaecology, oncology, tumour> Benign smooth muscle tumours of the uterus. May cause irregular vaginal bleeding. Synonym: leiomyomata. (27 Sep 1997) |
| fibroid adenoma | <oncology, tumour> A benign solid growth, usually found in the breast. (09 Oct 1997) |
| fibroid cataract | A sclerotic hardening of the capsule of the lens, following exudative iridocyclitis. (05 Mar 2000) |
| fibroid inflammation | A form of chronic inflammation or repeated episodes of acute inflammation in which the continued or recurrent proliferation of fibroblasts results in the formation of fibrous tissue that eventually contracts and leads to compression and atrophy of parenchymal tissue. Synonym: fibroid inflammation. (05 Mar 2000) |
| fibroid lung | Chronic interstitial pneumonia in a lung. (05 Mar 2000) |
| fibroid tumour | Old term for certain fibromas and leiomyomas. (05 Mar 2000) |
| uterine fibroid | Benign smooth muscle tumours of the uterus (womb). Also called leiomyomata. May cause irregular menses. (27 Sep 1997) |