Carcinoid tumors are part of a heterogeneous group of gastrointestinal and pancreatic endocrine tumors that are characterized by their capacity to produce and secrete hormones, 5-hydroxytryptamine ...

Background. A 48-year-old man presented with diarrhea, flushing, abdominal pain and weight loss of 10 kg over a 6-month period. He subsequently developed dyspnea on exertion. Diagnosis. Carcinoid ...

A 26-year-old woman with an uneventful family medical history presented for evaluation and treatment of a facial dermatosis of 6 years duration. Examination revealed an intense erythema ...