All are seen in carcinoid syndrome
Carcinoid syndrome is a paraneoplastic syndrome comprising the signs and symptoms that occur secondary to carcinoid tumors. The syndrome includes flushing and diarrhea, and less frequently, hea failure, vomiting and bronchoconstriction. It is caused by endogenous secretion of mainly serotonin and kallikrein. Ref: Internet sources
Diarrhoea
Constipation
Liver metastasis
5-HT secretion
Urology