How is carcinoid syndrome diagnosed?
Diagnosis of carcinoid syndrome is based on measuring either the urine or blood levels of 5-hydroxyindoleacetic acid (an acid produced during the breakdown of serotonin), and imaging tests to identify the location and size of the underlying cancerous tumor.
Author: Idan Ben-Barak
First answered: 13 Jul 2015
Last reviewed: 19 May 2018
Rating: 4.2/5 Votes: 780