| haemangioendothelioma | <oncology, tumour> A tumour which comes from endothelial cells lining the inside surfaces of blood vessels. (09 Oct 1997) |
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| haemangioendothelioma tuberosum multiplex | An eruption of pinkish papules, caused by hyperplasia of the endothelium of the superficial blood vessels. (05 Mar 2000) |
| haemangioendothelioma, epithelioid | A tumour of medium-to-large veins, composed of plump-to-spindled endothelial cells that bulge into vascular spaces in a tombstone-like fashion. These tumours are thought to have "borderline" aggression, where one-third develop local recurrences, but only rarely metastasize. It is unclear whether the epithelioid haemangioendothelioma is truly neoplastic or an exuberant tissue reaction, nor is it clear if this is equivalent to kimura's disease (see angiolymphoid hyperplasia with eosinophilia). (12 Dec 1998) |
| liver haemangioendothelioma | <radiology> Females (67%), infants (90% before 6 m/o), symptoms: mass (hepatomegaly), cutaneous haemangiomas (45%), mildly increased aFP (occasionally), with or without congestive heart failure secondary to shunting (only 4%), usually diffuse, precludes surgery, most involute spontaneously or with steroids Differential diagnosis: mesenchymal hamartoma, cavernous haemangioma, hepatoma, hepatoblastoma (increased aFP), metastatic neuroblastoma (increased serum VMA) (12 Dec 1998) |
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