Carcinoid tumors are neoplasms that arise from neuroendocrine ... Manifestations of the carcinoid syndrome include the "classic" triad of cutaneous flushing, diarrhea, and valvular heart disease ...

He subsequently developed dyspnea on exertion. Diagnosis. Carcinoid tumor of midgut origin with large segment 3 liver metastasis. Carcinoid syndrome and carcinoid heart disease. Management.