Carcinoid tumour marker tests
Framing
- Carcinoid tumour biochemical markers detect excess serotonin/neuroendocrine peptide secretion from these typically slow-growing neuroendocrine tumours - 5-hydroxyindoleacetic acid (a serotonin breakdown product) and chromogranin A (a general neuroendocrine secretory granule marker) are complementary, testing different aspects of tumour secretory activity
- See for the broader neuroendocrine tumour category within which carcinoid tumours sit
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