raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:85201

Genitopatellar syndrome

Synonyms: Absent patellae-scrotal hypoplasia-renal anomalies-facial dysmorphism-intellectual disability syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal dominant, Autosomal recessive
Age of onset
Childhood
Status
active

A rare congenital patellar anomaly syndrome characterized by patellar aplasia or hypoplasia associated with microcephaly, characteristic coarse facial features (microcephaly, bitemporal narrowing, large, broad nose with high nasal bridge, prominent cheeks and micro/retrognathia or prognathism), arthrogryposis of the hips and knees, urogenital abnormalities and intellectual deficiency.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enGenitopatellar syndromeAbsent patellae-scrotal hypoplasia-renal anomalies-facial dysmorphism-intellectual disability syndrome
frSyndrome génito-patellaireSyndrome de rotule absente-hypoplasie scrotale-anomalies rénales-dysmorphie faciale-déficience intellectuelle
deGenito-patellares SyndromPatellaaplasie-Skrotumhypoplasie-Nierenanomalien-Geischtsdysmorphien-Intelligenzminderung-Syndrom
esSíndrome genitopatelarSíndrome de ausencia de rótula-hipoplasia escrotal-anomalías renales-dismorfia facial-discapacidad intelectual
itSindrome genitorotuleaSindrome rotule assenti- ipoplasia scrotale-anomalie renali-dismorfismi facciali- disabilità intellettiva
nlGenitopatellair syndroomAfwezige patellae - hypoplasie van scrotum - nieranomalieën - faciale dysmorfie - intellectuele achterstand-syndroom
ptSíndrome genitorrotulianoSíndrome de rótulas ausentes-hipoplasia escrotal-anomalias renais-dismorfia facial-perturbação do desenvolvimento intelectual
plZespół płciowo-rzepkowyBrak rzepki - hipoplazja moszny - wady nerek - dysmorfia twarzy - niepełnosprawność intelektualna
csGenitopatelární syndromSyndrom zahrnující absenci patel, skrotální hypoplázii, renální anomálie, faciální dysmorfismus a mentální retardaci
ukГенітопателлярний синдромСиндром відсутності колінних чашечок - гіпоплазії мошонки - аномалії нирок - дизморфізму обличчя - інтелектуальної недостатності
zh生殖器-髌骨综合征髌骨缺如-阴囊发育不全-肾畸形-面部畸形-智力障碍综合征
trGenitopatellar sendromPatella yokluğu-skrotal hipoplazi-böbrek anomalileri-fasiyal dismorfizm-zihinsel yetersizlik sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM606170Evalidated
ICD-10Q87.8NTBTattributedvalidated
ICD-11LD2F.1YNTBTindexvalidated
MONDO0011640Evalidated
MeSHC565255Evalidated
UMLSC1853566Evalidated
GARD10994Evalidated

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
KAT6BDisease-causing germline mutation(s) inAssessedHGNC:17582ENSG0000015665060588010q22.2lysine acetyltransferase 6B23236640[PMID]_22265017[PMID]_22265014[PMID]
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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families22 casesWorldwideCase(s)Validated22265014[PMID]_22265017[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_22265014[PMID]_22265017[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

38 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0002804Arthrogryposis multiplex congenita
HP:0008665Clitoral hypertrophy
HP:0000280Coarse facial features
HP:0000028Cryptorchidism
HP:0001263Global developmental delay
HP:0003273Hip contracture
HP:0000126Hydronephrosis
HP:0000946Hypoplastic ilia
HP:0003175Hypoplastic ischia
HP:0001249Intellectual disability
HP:0006380Knee flexion contracture
HP:0000252Microcephaly
HP:0000003Multicystic kidney dysplasia
HP:0006443Patellar aplasia
HP:0000426Prominent nasal bridge
HP:0000448Prominent nose
HP:0004279Short palm
HP:0000046Small scrotum
HP:0000445Wide nose
Frequent (79-30%)
HP:0001274Agenesis of corpus callosum
HP:0000684Delayed eruption of teeth
HP:0000750Delayed speech and language development
HP:0002213Fine hair
HP:0000316Hypertelorism
HP:0000343Long philtrum
HP:0000369Low-set ears
HP:0000347Micrognathia
HP:0001250Seizure
HP:0002209Sparse scalp hair
HP:0001762Talipes equinovarus
Occasional (29-5%)
HP:0002104Apnea
HP:0001631Atrial septal defect
HP:0011968Feeding difficulties
HP:0002020Gastroesophageal reflux
HP:0000365Hearing impairment
HP:0002089Pulmonary hypoplasia
HP:0002974Radioulnar synostosis
HP:0004322Short stature

Run the differential on the 12 obligate / very frequent terms

Annotation source: 10882755[PMID]

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Sources for this card