Rare diseases · Sign or symptom

Neoplasm of the small intestine

Small intestine tumor

HP:0100833

What it means

The presence of a neoplasm of the small intestine.

An estimated 40% of small bowel cancers are adenocarcinomas, 40% are carcinoids, 15% are sarcomas (GI stromal tumors), and less than 5% are lymphomas.

Rare diseases that can present with this8

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Small intestine tumour

Neoplasm of the small intestine

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This page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.