A case of postprandial cluster-like headache with prolactinoma: dramatic response to cabergoline.

A 17-year-old boy without a significant past medical history presented with recurrent cluster-like headaches induced by meals for 3 years. Magnetic resonance images showed a pituitary tumor. Just after starting treatment with cabergoline, the headaches resolved completely and the patient has been absolutely free from such headache attacks for 2 years.