An Unusual Cause of GI Blood Loss.

Chronic gastrointestinal bleeding is the leading cause of iron deficiency anemia in developed countries, and most occult bleeds are attributed to upper gastrointestinal tract lesions, which are broadly categorized into mass lesions, vascular, infectious, and inflammatory abnormalities. Gastric polyps account for an exceedingly small portion of these lesions but are of clinical importance because of the risk for progression to malignancy. We describe a patient found to have a gastric foveolar-type adenoma as a rare cause of iron deficiency anemia, with an incidentally found gastric neuroendocrine tumor.