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Carcinoid tumors and carcinoid heart disease
Open full size image KEY POINTS Carcinoid tumors are rare neuroendocrine tumors, arising from the small bowel (75% to 80%) or lung (20% to 30%). Carcinoid tumors secrete biologically active substances, including serotonin, histamine, tachykinins, kallikrein, and prostaglandins and they…