raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:3079

Intellectual disability, Buenos-Aires type

Synonyms: Mutchinick syndrome

Type
Malformation syndrome
Group
Disorder
Age of onset
Neonatal
Status
active

Intellectual disability, Buenos-Aires type is a rare intellectual disability syndrome characterized by growth retardation, microcephaly, characteristic facial features (including narrow forehead, bushy eyebrows, hypertelorism, small, downward-slanting palpebral fissures with blepharoptosis, malformed and low-set ears, broad straight nose, thin upper lip, and a wide, tented mouth), developmental delay, intellectual disability, speech disorder, and multiple organ malformations (e.g. ventricular septal defect, megaloureter, dilated renal pelvis). Additional manifestations reported include neurocutaneous lesions (including palmoplantar hyperkeratosis), internal hydrocephalus, and bilateral partial soft-tissue syndactyly of second and third toe.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enIntellectual disability, Buenos-Aires typeMutchinick syndrome
frDéficience intellectuelle type Buenos-AiresSyndrome de Mutchinick
deIntelligenzminderung Typ Buenos-AiresMutchinick-Syndrom
esDiscapacidad intelectual tipo Buenos AiresSíndrome de Mutchinick
itDisabilità intellettiva, tipo Buenos AiresSindrome di Mutchinick
nlIntellectuele achterstand, Buenos Aires-typeSyndroom van Mutchinick
ptPerturbação do desenvolvimento intelectual, tipo Buenos AiresSíndrome Mutchinick
plNiepełnosprawność intelektualna typu Buenos-AiresZespół Mutchinicka
csMentální retardace, typ Buenos-AiresMutchinickův syndrom
ukІнтелектуальна недостатність, тип Буенос-АйресаСиндром Мутчініка
zh智力障碍,Buenos-Aires亚型Mutchinick综合征
trZihinsel yetersizlik, Buenos-Aires tipiMutchinick sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM249630Evalidated
ICD-10Q87.8NTBTattributedvalidated
ICD-11LD90NTBTattributedvalidated
MONDO0009584Evalidated
MeSHC563095Evalidated
UMLSC0796080Evalidated
GARD3485Evalidated
MedDRA10089183Evalidated

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.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families5 casesWorldwideCase(s)Validated5025484[PMID]_10190479[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_5025484[PMID]_10190479[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

30 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001671Abnormal cardiac septum morphology
HP:0006482Abnormal dental morphology
HP:0001231Abnormal fingernail morphology
HP:0002644Abnormality of pelvic girdle bone morphology
HP:0002167Abnormality of speech or vocalization
HP:0002683Abnormality of the calvaria
HP:0004422Biparietal narrowing
HP:0004209Clinodactyly of the 5th finger
HP:0008425Cuboid-shaped thoracolumbar vertebral bodies
HP:0000689Dental malocclusion
HP:0000494Downslanted palpebral fissures
HP:0002213Fine hair
HP:0000218High palate
HP:0008407Hyperconvex thumb nails
HP:0000316Hypertelorism
HP:0001249Intellectual disability
HP:0000400Macrotia
HP:0000303Mandibular prognathia
HP:0000252Microcephaly
HP:0010807Open bite
HP:0000768Pectus carinatum
HP:0000613Photophobia
HP:0004349Reduced bone mineral density
HP:0004322Short stature
HP:0000340Sloping forehead
HP:0002064Spastic gait
HP:0001537Umbilical hernia
HP:0000431Wide nasal bridge
Frequent (79-30%)
HP:0000581Blepharophimosis
HP:0000126Hydronephrosis

Run the differential on the 12 obligate / very frequent terms

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Sources for this card