A carcinoid syndrome develops in some patients with a carcinoid tumor and is characterized by a flushing of the skin, abdominal cramps and diarrhea. After a few years, a right-sided valvular heart disease may show. The syndrome is caused by vasoactive substances (including serotonin, bradykinin, histamine, prostaglandins and polypeptide hormones), which are secreted by the tumor, which is typically a metastatic intestinal carcinoid. The diagnosis is made clinically and by…

September 3, 2018