[Bladder hemangioma: a rare cause of hematuria. Apropos of a case. Review of the literature].

The authors report a clinical case of multiple vesical haemangioma, a rare congenital benign vascular tumour essentially affecting children and young adults. These tumours may be solitary or multiple, and essentially spread to the bladder wall. They are sometimes associated with other sites, such as in the rare Klippel-Trenaunay-Weber syndrome. Usually presenting in the form of macroscopic haematuria, they are essentially diagnosed by endoscopy. Depending on the case, treatment consists of partial cystectomy or laser photocoagulation, rather than endoscopic resection, which is haemorrhagic and incomplete, or radiotherapy, which is insufficient. Selective arterial embolization is rarely used.