Blue rubber bleb nevus.
D000293:Adolescent; D000740:Anemia / Q000150:complications; D005767:Gastrointestinal Diseases / Q000473:pathology; D006391:Hemangioma / Q000473:pathology*; D006801:Humans; D008297:Male; D009506:Nevus / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology*