title: [Chronic leg ulcer with malignant changes: report of 7 cases].
mesh_terms: D000328:Adult; D000368:Aged; D002280:Basal Cell Carcinoma / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000473:pathology; D002471:Cell Transformation, Neoplastic / Q000473:pathology*; D002908:Chronic Disease; D005260:Female; D006801:Humans; D007871:Leg Ulcer / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D012878:Skin Neoplasms / Q000473:pathology