raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:59305

Gestational trophoblastic neoplasm

Synonyms: GTN

Type
Clinical group
Group
Group of disorders
Inheritance
Not applicable
Age of onset
Adult
Status
active

A rare, malignant group of gestational trophoblastic diseases always following pregnancy, most often molar pregnancy (hydatidiform mole). Four histological forms are described: invasive mole, gestational choriocarcinoma, placental site trophoblastic tumor (PSTT) and epithelioid trophoblastic tumor (ETT).

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enGestational trophoblastic neoplasmGTN
frTumeur trophoblastique gestationnelleTTG
deNeoplasie, gestationsbedingte trophoblastischeSchwangerschafts-Trophoblastentumor
esNeoplasia trofoblástica gestacionalNTG
itTumore trofoblastico della gravidanza= en
nlGestationeel trofoblastisch neoplasmaGTN · Gestationele trofoblasttumor
ptNeoplasia trofoblástica gestacional= en
plCiążowy nowotwór trofoblastyczny= en
csGestační trofoblastická neoplázie= en
ukГестаційне трофобластичне новоутворення= en
zh妊娠滋养细胞肿瘤= en
trGestasyonel trofoblastik neoplazm= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-112C75.0Especificvalidated
MONDO0018944Evalidated
MONDO18944Evalidated
UMLSC1135868Evalidated
GARD6498Evalidated
MedDRA10061988Evalidated

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):

Children (4):

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyValidatedORPHANET
Annual incidenceUnknown—WorldwideClass onlyValidatedORPHANET

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