carcinoid tumor
Findings
No curated finding names carcinoid tumor yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
A slow growing neuroendocrine tumor, composed of uniform, round, or polygonal cells having monotonous, centrally located nuclei and small nucleoli, infrequent mitoses, and no necrosis. The tumor may show a variety of patterns, such as solid, trabecular, and acinar. Electron microscopy shows small secretory granules. Immunohistochemical studies reveal NSE, as well as chromogranin immunoreactivity. Malignant histology (cellular pleomorphism, hyperchromatic nuclei, prominent nucleoli, necrosis, and mitoses) can occasionally be seen. Such cases may have an aggressive clinical course. Gastrointestinal tract and lung are common sites of involvement.
Definition from the Mondo Disease Ontology (MONDO:0005369), read 2026-09-29. CC BY 4.0.
Where it sits
- A kind of
Other names
7 names
Resolves to: carcinoid tumor
- Also called
- carcinoidcarcinoid tumor (disease)carcinoid tumour (disease)NET G1neuroendocrine neoplasm G1neuroendocrine tumor G1neuroendocrine tumour G1