raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:435628

Keppen-Lubinsky syndrome

Synonyms: Generalized lipodystrophy-progeroid features-severe intellectual disability syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal dominant, Not applicable
Age of onset
Neonatal
Status
active

A rare, genetic, primary lipodystrophy syndrome characterized by severe developmental delay and intellectual disability, hypertonia, hyperreflexia, microcephaly, tightly adherent skin, an aged appearance, severe generalized lipodystrophy, and distinct facial dysmorphism which includes large prominent eyes, narrow nasal bridge, tented upper lip vermilion, an open mouth, and high-arched palate. Laboratory analysis of serum and urine are normal.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enKeppen-Lubinsky syndromeGeneralized lipodystrophy-progeroid features-severe intellectual disability syndrome
frSyndrome de Keppen-LubinskySyndrome de lipodystrophie généralisée-traits progéroïdes-déficience intellectuelle sévère
deKeppen-Lubinsky-SyndromGeneralisierte Lipodystropie-progeroide Merkmale-schwere Intelligenzminderung-Syndrom
esSíndrome de Keppen-LubinskySíndrome de lipodistrofia generalizada-rasgos progeroides-discapacidad intelectual grave
itSindrome di Keppen-LubinskySindrome lipodistrofia generalizzata-tratti progeroidi-disabilità cognitiva grave · Sindrome lipodistrofia generalizzata-tratti progeroidi-disabilità cognitiva grave
nlSyndroom van Keppen-LubinskyGegeneraliseerde lipodystrofie - progeroïde kenmerken - ernstige intellectuele achterstand-syndroom
ptSíndrome Keppen-LubinskySíndrome de lipodistrofia generalizada-características progeroides--perturbação do desenvolvimento intelectual grave
plZespół Keppenów i Lubinsky'egoZespół lipodystrofii uogólnionej, cech progeroidalnych i ciężkiej niepełnosprawności intelektualnej
csKeppenové-Lubinského syndromSyndrom zahrnující generalizovanou lipodystrofii, progeroidní rysy a těžkou mentální retardaci · Keppen-Lubinského syndrom
ukСиндром Кеппена-ЛюбінськогоСиндром генералізованої ліподистрофії - прогероїдних ознак - тяжкої інтелектуальної недостатності
zhKeppen-Lubinsky综合征全身性脂肪营养不良-早老症-严重智力障碍综合征
trKeppen-Lubinsky sendromuJeneralize lipodistrofi-progeroid özellikler-ağır zihinsel yetersizlik sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM614098Evalidated
ICD-10E88.1NTBTattributedvalidated
ICD-11LD2BNTBTattributedvalidated
MONDO0013572Evalidated
UMLSC3279800Evalidated

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 (4):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
KCNJ6Disease-causing germline mutation(s) inAssessedHGNC:6267ENSG0000015754260087721q22.13potassium inwardly rectifying channel subfamily J member 625620207[PMID]
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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families3 casesWorldwideCase(s)Validated25620207[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_25620207[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

42 annotations · validated 2016-12-05
HPOTerm (as annotated by Orphanet)Diagnostic
Obligate (100%)
HP:0009059Congenital generalized lipodystrophy
HP:0005328Progeroid facial appearance
Very frequent (99-80%)
HP:0001347Hyperreflexia
HP:0001249Intellectual disability
HP:0000252Microcephaly
HP:0000347Micrognathia
HP:0000194Open mouth
HP:0100678Premature skin wrinkling
HP:0000322Short philtrum
Frequent (79-30%)
HP:0000496Abnormality of eye movement
HP:0000290Abnormality of the forehead
HP:0001090Abnormally large globe
HP:0010751Chin dimple
HP:0008734Decreased testicular size
HP:0002094Dyspnea
HP:0001508Failure to thrive
HP:0001371Flexion contracture
HP:0000212Gingival overgrowth
HP:0000218High palate
HP:0001276Hypertonia
HP:0002187Intellectual disability, profound
HP:0009125Lipodystrophy
HP:0000292Loss of facial adipose tissue
HP:0000298Mask-like facies
HP:0009933Narrow naris
HP:0000446Narrow nasal bridge
HP:0002179Opisthotonus
HP:0001561Polyhydramnios
HP:0008897Postnatal growth retardation
HP:0005274Prominent nasal tip
HP:0000520Proptosis
HP:0006532Recurrent pneumonia
HP:0002093Respiratory insufficiency
HP:0002650Scoliosis
HP:0011344Severe global developmental delay
HP:0000586Shallow orbits
HP:0001285Spastic tetraparesis
HP:0010804Tented upper lip vermilion
HP:0000430Underdeveloped nasal alae
HP:0002781Upper airway obstruction
Occasional (29-5%)
HP:0002659Increased susceptibility to fractures
HP:0001250Seizure

Run the differential on the 9 obligate / very frequent terms

Annotation source: 25620207[PMID]_19610118[PMID]_12567423[PMID]

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Sources for this card