Images of Memorable Cases: Case 36 This 12-year-old boy had a long history of bluish, rubbery, nipple-like, cutaneous masses along with recurrent intestinal bleeding. 36.Blue rubber-bleb nevus syndrome A rare, sometimes familial, disorder characterized by a variety of cutaneous vascular malformations in association with visceral hemangiomas. The hemangiomas chiefly affect the gut (image below), are fragile, and bleed easily.