Definition of Carcinoid
1. Noun. A small tumor (benign or malignant) arising from the mucosa of the gastrointestinal tract; usually associated with excessive secretion of serotonin.
Definition of Carcinoid
1. [n -S]
Medical Definition of Carcinoid
1.
Intestinal tumour arising from specialised cells with paracrine functions (APUD cells).
The primary tumour is commonly in the appendix, where it is clinically benign, hepatic secondaries may release large amounts of vasoactive amines such as serotonin to the systemic circulation.
Synonym: argentaffinoma.
(19 Jan 1998)
Lexicographical Neighbors of Carcinoid
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