carcinoid crisis UMLS:C0342569 carcinoid crisis Editor note: consider ceding to HPO A life-threatening complication of carcinoid syndrome, and is generally found in people who already have carcinoid syndrome. The crisis may occur suddenly, or it can be associated with stress, chemotherapy, or anesthesia. SCTID:237833006 MONDO:0041167 GARD:0025834 MEDGEN:575107 carcinoid syndrome