Trait

Carcinoid tumor

A tumor formed from the endocrine (argentaffin) cells of the mucosal lining of a variety of organs including the stomach and intestine. These cells are from neuroectodermal origin.

HPO HP:0100570

Also called: Carcinoid, Carcinoid tumour
Body system: Abnormality of the endocrine system Abnormality of the nervous system Abnormal tissue mass

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8 genes linked to Carcinoid tumor

Changes in these genes cause rare conditions in which Carcinoid tumor is seen. Most people with this trait have none of those conditions, and a gene on this list says nothing about anyone's own genome.

Gene	How often it is seen	Conditions
ATRXATRX chromatin remodeler	Always	In 1 condition
SDHDsuccinate dehydrogenase complex subunit D	Always	In 1 condition
CDKN1Bcyclin dependent kinase inhibitor 1B	Sometimes (5–29%)	In 3 conditions
CDKN2Bcyclin dependent kinase inhibitor 2B	Sometimes (5–29%)	In 1 condition
MEN1menin 1	Sometimes (5–29%)	In 2 conditions
IFNGinterferon gamma	Rarely (1–4%)	In 1 condition
TSC1TSC complex subunit 1	Rarely (1–4%)	In 1 condition
TSC2TSC complex subunit 2	Rarely (1–4%)	In 1 condition

How often is among people with one of the gene's conditions, the most often across them, as the Human Phenotype Ontology records it. These pages describe traits and the research behind them; they are not a diagnosis, and a doctor or genetic counsellor is the person to ask about symptoms.

Narrower traits

Broader traits

Neuroendocrine neoplasm

Where this comes from

The Human Phenotype Ontology, release 2026-09-01: the trait, its names, its definition and the genes linked to it. Find out more at hpo.jax.org.
Data release 2026.10.16-c6eea6bf.

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