Blue Rubber Bleb Nevus Syndrome Presenting as Severe Transfusion-Dependent Anemia in an Elderly Patient: An Unusual Cause of Lower Gastrointestinal Bleeding.

Gastrointestinal involvement may lead to chronic bleeding and iron deficiency anemia, most commonly presenting in younger individuals.

His medical history was significant for recurrent anemia and prior gastrointestinal bleeding.

Capsule endoscopy excluded small bowel involvement.

Given the diffuse distribution and number of lesions, endoscopic or surgical intervention was not feasible.