raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:329977

Classic neuroendocrine tumor of appendix

Synonyms: Classic appendiceal neuroendocrine tumor · Classic appendix neuroendocrine tumor

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Not applicable
Age of onset
All ages
Status
active

A rare endocrine tumor of the appendix, seen twice as frequently in females than in males, and usually presenting before the fifth decade of life. It is usually asymptomatic when located in the tip of the appendix (without obstruction), but acute appendicitis is often associated.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enClassic neuroendocrine tumor of appendixClassic appendiceal neuroendocrine tumor · Classic appendix neuroendocrine tumor
frTumeur neuroendocrine classique de l'appendiceTumeur neuroendocrine appendiculaire classique
deNeuroendokriner Tumor des Apendix, klassischerAppendix-NET, klassischer
esTumor neuroendocrino clásico del apéndiceTumor neuroendocrino apendicular clásico
itTumore endocrino classico dell'appendiceTumore endocrino appendicolare classico
nlKlassieke neuro-endocriene tumor van appendixKlassieke appendiculaire neuro-endocriene tumor
ptTumor endócrino clássico do apêndiceTumor neuroendócrino clássico do apêndice
plKlasyczny guz neuroendokrynny wyrostka robaczkowego= en
csKlasický endokrinní nádor apendixu= en
ukКласична нейроендокринна пухлина апендиксаКласична нейроендокринна пухлина апендикса · Класична нейроендокринна пухлина апендикса
zh经典阑尾神经内分泌肿瘤= en
trApendiksin klasik nöroendokrin tümörüKlasik apendiks nöroendokrin tümör · Klasik apendiks nöroendokrin tümörü

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10D37.3NTBTattributedvalidated
MONDO0018016Evalidated
UMLSC5679854Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Annual incidence1-9 / 1 000 0000.25 / 100 000WorldwideValue and classNot yet validated20524865[PMID]
Point prevalenceUnknown—WorldwideClass onlyNot yet validatedORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card