raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:52022

Potocki-Shaffer syndrome

Synonyms: 11p11.2 deletion · Proximal 11p deletion syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Unknown
Age of onset
Infancy, Neonatal
Status
active

A rare partial autosomal monosomy characterized by global developmental delay, intellectual disability, multiple cartilaginous exostoses, and craniofacial anomalies (such as brachycephaly, biparietal foramina, large fontanels, craniosynostosis, ptosis, epicanthic folds, prominent nasal bridge with broad, depressed nasal tip, hypoplastic nares, short philtrum, downturned upper lip, and micrognathia). Additional reported features include behavioral abnormalities, myopia, strabismus, and sensorineural hearing loss, among others.

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPotocki-Shaffer syndrome11p11.2 deletion · Proximal 11p deletion syndrome
frSyndrome de Potocki-ShafferDélétion 11p11.2 · Délétion proximale 11p
dePotocki-Shaffer-SyndromDeletion 11p11.2 · Proximales 11p-Deletionssyndrom
esSíndrome de Potocki-ShafferDeleción 11p11.2 · Síndrome de deleción proximal 11p
itSindrome di Potocki-ShafferDelezione 11p11.2 · Sindrome da delezione 11p prossimale
nlSyndroom van Potocki-Shaffer11p11.2-deletie · Proximale 11p-deletiesyndroom
ptSíndrome de Potocki-ShafferDeleção 11p11.2 · Síndrome deleção 11p proximal
plZespół Potockiego i ShafferaDelecja 11p11.2 · Zespół proksymalnej delecji 11p
csPotocké-Shafferové syndromDelece 11p11.2 · Syndrom proximální delece 11p · Potocki-Shafferové syndrom
ukСиндром Потоцького-ШаффераДелеція 11p11.2 · Синдром проксимальної делеції 11p
zhPotocki-Shaffer综合征11号染色体短臂近端缺失综合征
trPotocki-Shaffer sendromu11p11.2 delesyonu · Proksimal 11p delesyon sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM601224Evalidated
ICD-10Q93.5NTBTattributedvalidated
ICD-11LD44.B1NTBTindexvalidated
MONDO0011022Evalidated
MeSHC538356Evalidated
UMLSC1832588Evalidated
GARD9762Evalidated

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):

No children.

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Genes

3 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ALX4Role in the phenotype ofAssessedHGNC:450ENSG0000005285060542011p11.2ALX homeobox 415852040[PMID]
EXT2Role in the phenotype ofAssessedHGNC:3513ENSG0000015134860821011p11.2exostosin glycosyltransferase 215852040[PMID]
PHF21ARole in the phenotype ofAssessedHGNC:24156ENSG0000013536560832511p11.2PHD finger protein 21A22770980[PMID]
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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families40 casesWorldwideCase(s)Validated23239541[PMID]_15852040[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_23239541[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.

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HPO phenotypes

23 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0000248Brachycephaly
HP:0000455Broad nasal tip
HP:0004331Decreased skull ossification
HP:0000437Depressed nasal tip
HP:0000286Epicanthus
HP:0100777Exostoses
HP:0001263Global developmental delay
HP:0000347Micrognathia
HP:0000426Prominent nasal bridge
HP:0000430Underdeveloped nasal alae
Frequent (79-30%)
HP:0002714Downturned corners of mouth
HP:0000054Micropenis
HP:0000639Nystagmus
HP:0002697Parietal foramina
HP:0001250Seizure
HP:0000322Short philtrum
HP:0000486Strabismus
Occasional (29-5%)
HP:0001903Anemia
HP:0000823Delayed puberty
HP:0000822Hypertension
HP:0000821Hypothyroidism
HP:0001249Intellectual disability
HP:0002667Nephroblastoma

Run the differential on the 10 obligate / very frequent terms

Annotation source: 20140962[PMID]

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Sources for this card