raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:100998

Autosomal dominant spastic paraplegia type 17

Synonyms: SPG17 · Silver syndrome · Spastic paraplegia-amyotrophy of hands and feet

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Adolescent, Adult, Childhood
Status
active

A complex hereditary spastic paraplegia characterized by progressive spastic paraplegia, upper and lower limb muscle atrophy, hyperreflexia, extensor plantar responses, pes cavus and occasionally impaired vibration sense. Association with hand muscles amyotrophy typical.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAutosomal dominant spastic paraplegia type 17SPG17 · Silver syndrome · Spastic paraplegia-amyotrophy of hands and feet
frParaplégie spastique autosomique dominante type 17SPG17 · Syndrome de Silver · Syndrome de paraplégie spastique-amyotrophie des pieds et des mains
deSpastische Paraplegie, autosomal-dominante, Typ 17SPG17 · Silver-Syndrom · Spastische Paraplegie - Amyotrophie der Hände und Füße
esParaplejía espástica autosómica dominante tipo 17Paraplejía espástica-amiotrofia de manos y pies · SPG17 · Síndrome de Silver
itParaplegia spastica autosomica dominante tipo 17Neuropatia motoria distale ereditaria, tipo 5B · Paraplegia spastica - amiotrofia delle mani e dei piedi · SPG17 · Sindrome di Silver · dHMN5B
nlAutosomaal dominante spastische paraplegie type 17SPG17 · Spastische paraplegie - amyotrofie van handen en voeten · Syndroom van Silver
ptParaplegia espástica autossómica dominante tipo 17SPG17 · Síndrome Silver
plAutosomalna dominująca paraplegia spastyczna typu 17SPG17 · Zespół Silvera · Paraplegia spastyczna-amiotrofia dłoni i stóp
csAutozomálně dominantní spastická paraplegie, typ 17Distální hereditární motorická neuropatie, typ 5B · SPG17 · Spastická paraplegie a amyotrofie rukou a nohou · dHMN5B · Silverův syndrom
ukАутосомно-домінантна спастична параплегія, тип 17Синдром Сільвера · Спастична параплегія-аміотрофія рук і ніг · SPG17
zh常染色体显性遗传痉挛性截瘫17型痉挛性截瘫-远端肌肉萎缩
trOtozomal dominant spastik parapleji tip 17SPG17 · Silver sendrom · Spastik parapleji-el ve ayaklarda amyotrofi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM270685Evalidated
ICD-10G11.4NTBTattributedvalidated
ICD-118B44.00NTBTindexvalidated
MONDO0010043Evalidated
MeSHC536644Evalidated
UMLSC2931276Evalidated
GARD4219Evalidated

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

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
BSCL2Disease-causing germline mutation(s) inAssessedHGNC:15832ENSG0000016800060615811q12.3BSCL2 lipid droplet biogenesis associated, seipin14981520[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families20 familiesWorldwideFamily(ies)ValidatedORPHANET
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET

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

16 annotations · validated 2018-04-25
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0001436Abnormality of the foot musculature
HP:0003487Babinski sign
HP:0009027Foot dorsiflexor weakness
HP:0009130Hand muscle atrophy
HP:0001347Hyperreflexia
HP:0002064Spastic gait
Occasional (29-5%)
HP:0040131Abnormal motor nerve conduction velocity
HP:0031374Ankle weakness
HP:0003693Distal amyotrophy
HP:0002936Distal sensory impairment
HP:0030237Hand muscle weakness
HP:0030838Hip pain
HP:0030839Knee pain
HP:0001763Pes planus
HP:0002174Postural tremor
HP:0001171Split hand

Annotation source: 13680364[PMID]_23553728[PMID]

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Sources for this card