raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:2643

Microcephalic primordial dwarfism, Toriello type

historical

Type
Malformation syndrome
Group
Disorder
Age of onset
Antenatal, Neonatal
Status
historical

A rare disorder characterised by growth retardation with prenatal onset, cataracts, microcephaly, intellectual deficit, immune deficiency, delayed ossification and enamel hypoplasia. It has been described in two siblings. Transmission is autosomal recessive.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMicrocephalic primordial dwarfism, Toriello type
frNanisme microcéphalique primordial type Toriello
deKleinwuchs, mikrozephaler primordialer, Typ Toriello
esTalla primordial microcefálica tipo TorielloEnanismo primordial microcefálico tipo Toriello
itNanismo osteodisplasico primitivo, tipo Toriello
nlMicrocefale primordiale dwerggroei, Toriello-type
ptNanismo microcefálico primordial, tipo Toriello
plNiskorosłość pierwotna mikrocefaliczna typu Toriello
csMikrocefalické primordiální trpaslictví, typ Toriellové
ukМікроцефальна первинна карликовість, тип Торіелло
zh小头先天性侏儒症,Toriello型
trMikrosefalik primordiyal cücelik, Toriello tipi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM251190Evalidated
ICD-10Q87.1NTBTattributedvalidated
ICD-11LD24.DNTBTindexvalidated
MONDO0009616Evalidated
MeSHC537321Evalidated
UMLSC1855089Evalidated
GARD3602Evalidated

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 (4):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families2 casesWorldwideCase(s)Validated3799711[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_3799711[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

18 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0005930Abnormality of epiphysis morphology
HP:0001156Brachydactyly
HP:0000518Cataract
HP:0004315Decreased circulating IgG level
HP:0002850Decreased circulating total IgM
HP:0002750Delayed skeletal maturation
HP:0000494Downslanted palpebral fissures
HP:0006297Enamel hypoplasia
HP:0001249Intellectual disability
HP:0001511Intrauterine growth retardation
HP:0000252Microcephaly
HP:0002205Recurrent respiratory infections
HP:0003510Severe short stature
Frequent (79-30%)
HP:0000772Abnormal rib morphology
HP:0001875Decreased total neutrophil count
HP:0002714Downturned corners of mouth
HP:0001252Hypotonia
HP:0002119Ventriculomegaly
7

Sources for this card