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. [ NCIT:C2915 ]

Synonyms: NET G1 carcinoid tumor neuroendocrine tumor G1 neuroendocrine neoplasm G1 carcinoid carcinoid tumor (disease)

This is just here as a test because I lose it

Term information

database cross reference
  • HP:0100570 (MONDO:otherHierarchy)
  • MONDO:0005369
  • NCIT:C2915 (MONDO:equivalentTo)
  • ICD9:209.60 (i2s)
  • EFO:0004243 (MONDO:equivalentTo)
  • ICDO:8241/3 (NCIT:C2915)
  • GARD:0009316 (shared-umls-xref)
  • SCTID:443492008 (MONDO:equivalentTo)
  • MESH:D002276 (MONDO:equivalentTo)
  • ICDO:8240/3 (NCIT:C2915)
IAO 0000589

carcinoid tumor (disease)

closeMatch

http://linkedlifedata.com/resource/umls/id/C0007095

http://identifiers.org/snomedct/81622000

comment

Editor note: In NCIT all carcinoid tumors are grade 1, but the name is sometimes used more broadly in other sources

exactMatch

http://purl.obolibrary.org/obo/NCIT_C2915

http://identifiers.org/mesh/D002276

http://identifiers.org/snomedct/443492008

gwas trait

true

id

EFO:0004243