raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:617

Congenital primary megaureter

Synonyms: Congenital primary megalo-ureter

Type
Morphological anomaly
Group
Disorder
Inheritance
Unknown
Age of onset
Adolescent, Adult, Childhood, Infancy, Neonatal
Status
active

A rare non-syndromic urogenital tract malformation characterized by a dilated ureter and normal bladder and bladder outlet. It may be obstructed, refluxing or unobstructed and not refluxing.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCongenital primary megaureterCongenital primary megalo-ureter
frMéga-uretère primitif congénital
deMegaureter, kongenitaler primärer
esMegauréter congénito primarioMegalouréter congénito primario
itMegauretra primitiva congenitaMegalouretra primitiva congenita
nlCongenitale primaire mega-ureterCongenitale primaire megalo-ureter
ptMega-ureter congénito
plWrodzona pierwotna cewka moczowa olbrzymiaWrodzona pierwotna cewka moczowa olbrzymia
csVrozený primární megaureterVrozený primární megaloureter
ukВроджений первинний мегауретерВроджена первинна мегалоуретра
zh先天性原发性巨输尿管先天性原发性巨输尿管
trDoğumsal primer megaüreterDoğumsal primer megalo-üreter

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q62.2Especificvalidated
ICD-11LB31.1Especificvalidated
MONDO0018960Evalidated
UMLSC4273898Evalidated

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

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (3):

Children (5):

4

Genes

0 direct

Orphanet records no gene directly on this code.

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Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
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.

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HPO phenotypes

10 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0010935Abnormality of the upper urinary tract
HP:0008676Congenital megaureter
HP:0000126Hydronephrosis
Frequent (79-30%)
HP:0002027Abdominal pain
HP:0001945Fever
HP:0002907Microscopic hematuria
HP:0000787Nephrolithiasis
HP:0000010Recurrent urinary tract infections
HP:0000076Vesicoureteral reflux
Occasional (29-5%)
HP:0000036Abnormality of the penis

Run the differential on the 3 obligate / very frequent terms

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Sources for this card