Blue Rubber Bleb Nevus Syndrome Complicated by Enhanced-Fibrinolytic-Type DIC: A Case Report.

A 54-year-old Japanese man was diagnosed with blue rubber bleb nevus syndrome (BRBNS) due to venodilation in the lower extremities at birth and gastrointestinal vascular malformations. He also had small bowel bleeding and enhanced-fibrinolytic-type disseminated intravascular coagulation (DIC). Endoscopic sclerotherapy for intestinal hemangioma could not be performed because of bleeding concerns; instead, a combined anticoagulant and antifibrinolytic treatment was performed. Although combination treatment with unfractionated heparin and tranexamic acid proved ineffective for small bowel bleeding, combination treatment with apixaban and tranexamic acid dramatically improved enhanced-fibrinolytic-type DIC. In BRBNS, treatment strategies should be considered after performing detailed coagulation tests.