Carcinoid Syndrome Unmasked by Fluoxetine, a Selective Serotonin Reuptake Inhibitor

A 55-year-old man presented in 1995 with colicky abdominal pain, associated with bloating and borborygmi during a 6-month period. Clinical examination, routine blood tests, abdominal ultrasound scan, and barium enema were normal, and it was thought likely that his symptoms were due to irritable bowel syndrome, and he was discharged.