title: Hemangiosarcoma subsequent to radiotherapy for a hemangioma in infancy.
abstract: A case is presented of a 31-year-old white man who developed a hemangiosarcoma in the very place where 30 years ago a hemangioma had been treated by radiotherapy. The rarity of such an occurrence is attested to by the fact that only two similar cases were found in the English medical literature.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005500:Follow-Up Studies; D006391:Hemangioma / Q000151:congenital / Q000532:radiotherapy*; D006394:Hemangiosarcoma / Q000209:etiology* / Q000628:therapy; D006801:Humans; D007223:Infant; D008297:Male; D009362:Neoplasm Metastasis; D009381:Neoplasms, Radiation-Induced / Q000209:etiology* / Q000628:therapy; D011878:Radiotherapy / Q000009:adverse effects; D012535:Scalp / Q000528:radiation effects*; D012878:Skin Neoplasms / Q000151:congenital / Q000532:radiotherapy* / Q000628:therapy