raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:456333

Hereditary neuroendocrine tumor of small intestine

Synonyms: Hereditary SB-NET · Hereditary SI-NET · Hereditary neuroendocrine tumor of small bowel · Small bowel hereditary neuroendocrine tumor · Small intestine hereditary neuroendocrine tumor

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Status
active

A rare inherited cancer-predisposing syndrome characterized by occurrence of multiple synchronous primary carcinoids of the small intestine. Clinical presentation is otherwise indistinguishable from sporadic carcinoids and includes abdominal pain, flushing, and diarrhea, often becoming manifest only after a long asymptomatic period. Most patients present with low grade tumors. Occurrence of pulmonary carcinoids has also been reported.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enHereditary neuroendocrine tumor of small intestineHereditary SB-NET · Hereditary SI-NET · Hereditary neuroendocrine tumor of small bowel · Small bowel hereditary neuroendocrine tumor · Small intestine hereditary neuroendocrine tumor
frTumeur neuroendocrine de l'intestin grêle héréditaire
deHereditärer neuroendokriner Tumor des DünndarmsFamiliärer karzinoider Tumor des Dünndarms · Hereditärer NET des Dünndarms
esTumor neuroendocrino hereditario del intestino delgado
itTumore neuroendocrino ereditario dell'intestino tenueSB-NET ereditario · SI-NET ereditario · Tumore neuroendocrino ereditario del piccolo intestino · Tumore neuroendocrino ereditario dell'intestino tenue
nlHereditaire neuro-endocriene tumor van dunne darmErfelijke neuro-endocriene tumor van dunne darm · Hereditaire SB-NET · Hereditaire SI-NET
ptTumor neuroendócrino hereditário do intestino delgadoSB-NET hereditário · SI-NET hereditário · Tumor neuroendócrino hereditário do intestino curto
plDziedziczny neuroendokrynny guz jelita cienkiego= en
csHereditární neuroendokrinní nádor tenkého střevaFamiliární karcinoid tenkého střeva
ukСпадкова нейроендокринна пухлина тонкої кишкиСпадкова нейроендокринна пухлина тонкої кишки · Спадковий SB-NET · Спадковий SI-NET · Спадкова нейроендокринна пухлина тонкої кишки · Спадкова нейроендокринна пухлина тонкої кишки
zh遗传性小肠神经内分泌肿瘤遗传性小肠神经内分泌肿瘤
trİnce bağırsağın kalıtsal nöroendokrin tümörüİnce bağırsağın kalıtsal nöroendokrin tümörü

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10C17.9NTBTattributedvalidated
ICD-112B80.21NTBTattributedvalidated
MONDO0018698Evalidated
UMLSC5679993Evalidated

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

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
IPMKDisease-causing germline mutation(s) inAssessedHGNC:20739ENSG0000015115160985110q21.1inositol polyphosphate multikinase25865046[PMID]
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Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

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

7

Sources for this card