raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:363400

Progressive encephalopathy-severe neurodegeneration-lipodystrophy syndrome

Synonyms: Celia disease · Celia encephalopathy · Severe neurodegenerative syndrome due to BSCL2 deficiency

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

A rare neurodegenerative disease characterized by severe developmental delay (notably speech delay), progressive psychomotor and cognitive regression (associated with variable degrees of lipodystrophy, hepatomegaly, hypertriglyceridemia and muscular hypertrophy), and mild to severe intellectual disability. Patients present with gait ataxia, spasticity, tretraplegia or tetraparesis, loss of language, tremors as well as early-onset subtle myoclonic seizures that develops into refractory tonic-clonic seizures and other forms of epilepsy as the disease progress.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enProgressive encephalopathy-severe neurodegeneration-lipodystrophy syndromeCelia disease · Celia encephalopathy · Severe neurodegenerative syndrome due to BSCL2 deficiency
frSyndrome d'encéphalopathie progressive-neurodégénérescence sévère-lipodystrophieEncéphalopathie de Celia · Maladie de Celia · Syndrome neurodégénératif sévère par déficit en BSCL2
deProgressive Enzephalopathie-schwere Neurodegeneration-Lipodystrophie-SyndromCelia-Enzephalopathie · Schweres neurodegeneratives Syndrom durch BSCL2-Mangel
esSíndrome de encefalopatía progresiva-neurodegeneración grave-lipodistrofiaEncefalopatía de Celia · Enfermedad de Celia · Síndrome neurodegenerativo grave por deficiencia de BSCL2
itSindrome neurodegenerativa grave con lipodistrofiaSindrome neurodegenerativa grave da deficit di BSCL2
nlProgressieve encefalopathie - ernstige neurodegeneratie - lipodystrofie-syndroomCelia-encefalopathie · Ernstig neurodegeneratief syndroom door BSCL2-deficiëntie · Ziekte van Celia
ptSíndrome de encefalopatia progressiva-neurodegeneração grave-lipodistrofiaDoença Celia · Encefalopatia Celia · Síndrome neurodegenerativo grave devido a deficiência BSCL2
plCiężki zespół neurodegeneracyjny z lipodystrofiąCiężki zespół neurodegeneracyjny z niedoborem BSCL2
csTěžký neurodegenerativní syndrom s lipodystrofiíTěžký neurodegenerativní syndrom způsobený deficitem BSCL2
ukТяжкий нейродегенеративний синдром з ліподистрофієюТяжкий нейродегенеративний синдром внаслідок дефіциту BSCL2
zh严重神经退行综合征伴脂肪营养不良BSCL2缺乏所致严重神经退行性综合征
trLipodistrofi ile seyreden ağır nörodejeneratif sendromBSCL2 eksikliğine bağlı ağır nörodejeneratif sendrom

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM615924Evalidated
ICD-10G31.8NTBTattributedvalidated
MONDO0014402Evalidated
UMLSC4750956Evalidated

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 (3):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
BSCL2Disease-causing germline mutation(s) inAssessedHGNC:15832ENSG0000016800060615811q12.3BSCL2 lipid droplet biogenesis associated, seipin23564749[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families10 casesWorldwideCase(s)Validated27632409[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_27632409[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

37 annotations · validated 2017-07-10
HPOTerm (as annotated by Orphanet)Diagnostic
Obligate (100%)
HP:0002448Progressive encephalopathy
Very frequent (99-80%)
HP:0100543Cognitive impairment
HP:0009064Generalized lipodystrophy
HP:0000842Hyperinsulinemia
HP:0000855Insulin resistance
HP:0007272Progressive psychomotor deterioration
HP:0025128Reduced intraabdominal adipose tissue
HP:0003758Reduced subcutaneous adipose tissue
Frequent (79-30%)
HP:0007256Abnormal pyramidal sign
HP:0001251Ataxia
HP:0001348Brisk reflexes
HP:0000280Coarse facial features
HP:0000750Delayed speech and language development
HP:0001397Hepatic steatosis
HP:0001347Hyperreflexia
HP:0002155Hypertriglyceridemia
HP:0001336Myoclonus
HP:0002275Poor motor coordination
HP:0001250Seizure
HP:0002360Sleep abnormality
HP:0001257Spasticity
HP:0001337Tremor
Occasional (29-5%)
HP:0000956Acanthosis nigricans
HP:0002340Caudate atrophy
HP:0002059Cerebral atrophy
HP:0001394Cirrhosis
HP:0002066Gait ataxia
HP:0002230Generalized hirsutism
HP:0002240Hepatomegaly
HP:0000752Hyperactivity
HP:0000822Hypertension
HP:0002451Limb dystonia
HP:0003198Myopathy
HP:0002529Neuronal loss in central nervous system
HP:0002878Respiratory failure
HP:0002273Tetraparesis
Very rare (<4-1%)
HP:0002133Status epilepticus

Run the differential on the 8 obligate / very frequent terms

Annotation source: 23564749[PMID]_27710244[PMID]

7

Sources for this card