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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.

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Author: Kellie Heywood
First answered: 18 Sep 2014
Last reviewed: 19 May 2018
Rating: 4.6 out of 5
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Category: Hyperthyroidism


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