raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:100075

Neuroendocrine tumor of stomach

Synonyms: GNET · Gastric NET · Gastric neuroendocrine tumor · NET of stomach

Type
Disease
Group
Disorder
Inheritance
Not applicable
Age of onset
Adult, Elderly
Status
active

A rare subtype of neuroendocrine neoplasm, arising from enterochromaffin-like cells in the stomach, with a variable clinical presentation, disease course and prognosis, depending on the disease type and histological grade. Most patients are asymptomatic, with diagnosis usually occurring incidentally during gastroscopy, however, symptoms of dyspepsia, anemia, pain, weight loss and gastrointestinal bleeding can be observed. Association with Zollinger-Ellison syndrome and multiple endocrine neoplasia type I has been reported.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enNeuroendocrine tumor of stomachGNET · Gastric NET · Gastric neuroendocrine tumor · NET of stomach
frTumeur neuroendocrine de l'estomacTumeur neuroendocrine gastrique
deTumor, neuroendokriner, des MagensGNET · Gastraler NET · Gastraler neuroendokriner Tumor · NET des Magens
esTumor neuroendocrino de estómagoTNE de estómago · TNE gástrico · TNEG · Tumor neuroendocrino gástrico
itTumore neuroendocrino dello stomaco
nlNeuro-endocriene tumor van maagGNET · NET van maag · Neuro-endocriene maagtumor
ptTumor endócrino gástrico
plGuz neuroendokrynny żołądkaGNET
csŽaludeční endokrinní nádor= en
ukНейроендокринна пухлина шлункаGastric NET · Нейроендокринна пухлина шлунка · GNET · НЕП шлунку
zh胃神经内分泌肿瘤胃神经内分泌瘤
trMide nöroendokrin tümörüGNET · Mide ağı · Mide NET · Gastrik nöroendokrin tümör

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10C16.9NTBTattributedvalidated
ICD-112B72.1NTBTindexvalidated
MONDO0003111Evalidated
UMLSC1333783Evalidated

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 (2):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ATRXCandidate gene tested inNot yet assessedHGNC:886ENSG00000085224300032Xq21.1ATRX chromatin remodeler26026117[PMID]
5

Prevalence and incidence

4 records
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 100 0003.2 / 100 000EuropeValue and classValidated25480460[PMID]
Point prevalence1-9 / 100 0001.7 / 100 000United StatesValue and classValidated25480460[PMID]
Point prevalence1-9 / 1 000 0000.7 / 100 000United KingdomValue and classValidated25480460[PMID]
Point prevalence1-9 / 1 000 0000.5 / 100 000JapanValue and classValidated25480460[PMID]

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

32 annotations · validated 2017-11-08
HPOTerm (as annotated by Orphanet)Diagnostic
Obligate (100%)
HP:0100570Carcinoid tumor
Frequent (79-30%)
HP:0002039Anorexia
HP:0002574Episodic abdominal pain
HP:0002254Intermittent diarrhea
HP:0001891Iron deficiency anemia
HP:0002017Nausea and vomiting
HP:0004396Poor appetite
HP:0001824Weight loss
Occasional (29-5%)
HP:0030446Atypical pulmonary carcinoid tumor
HP:0025085Bloody diarrhea
HP:0002730Chronic noninfectious lymphadenopathy
HP:0001005Dermatological manifestations of systemic disorders
HP:0002910Elevated circulating hepatic transaminase concentration
HP:0002248Hematemesis
HP:0002240Hepatomegaly
HP:0030145Lack of bowel sounds
HP:0002249Melena
HP:0002044Zollinger-Ellison syndrome
Very rare (<4-1%)
HP:0031566Abnormal pulmonary valve cusp morphology
HP:0012701Bowel urgency
HP:4000007Bronchoconstriction
HP:0030149Cardiogenic shock
HP:0007380Facial telangiectasia
HP:0001399Hepatic failure
HP:0002615Hypotension
HP:0003154Increased circulating ACTH level
HP:0003144Increased serum serotonin
HP:0001962Palpitations
HP:0002668Paraganglioma
HP:0004385Protracted diarrhea
HP:0001708Right ventricular failure
HP:0005180Tricuspid regurgitation

Run the differential on the 1 obligate / very frequent terms

Annotation source: 24415864[PMID]_22052063[PMID]_9070484[PMID]_18097129[PMID]_18097129[PMID]_22997445[PMID]_22262004[PMID]_18941127[PMID]_26511392[PMID]

7

Sources for this card