raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:101009

Autosomal dominant spastic paraplegia type 29

Synonyms: SPG29

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

A complex form of hereditary spastic paraplegia characterized by a spastic paraplegia presenting in adolescence, associated with the additional manifestations of sensorial hearing impairment due to auditory neuropathy and persistent vomiting due to a hiatal or paraesophageal hernia.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAutosomal dominant spastic paraplegia type 29SPG29
frParaplégie spastique autosomique dominante type 29= en
deSpastische Paraplegie, autosomal-dominante, Typ 29= en
esParaplejía espástica autosómica dominante tipo 29= en
itParaplegia spastica autosomica dominante, tipo 29= en
nlAutosomaal dominante spastische paraplegie type 29= en
ptParaplegia espástica autossómica dominante tipo 29
plAutosomalna recesywna paraplegia spastyczna typu 29= en
csAutozomálně dominantní spastická paraplegie, typ 29= en
ukАутосомно-домінантна спастична параплегія, тип 29= en
zh常染色体显性遗传痉挛性截瘫29型= en
trOtozomal dominant spastik parapleji tip 29= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM609727Evalidated
ICD-10G11.4NTBTattributedvalidated
ICD-118B44.00NTBTindexvalidated
MONDO0012334Evalidated
MeSHC536863Evalidated
UMLSC1857855Evalidated
GARD9729Evalidated

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 (1):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
SPG29Disease-causing germline mutation(s) inAssessedHGNC:301611p31.1-p21.1spastic paraplegia 29 (autosomal dominant)16130112[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families1 familiesWorldwideFamily(ies)Validated16130112[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_16130112[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

14 annotations · validated 2018-04-03
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003487Babinski sign
HP:0002395Lower limb hyperreflexia
Frequent (79-30%)
HP:0000365Hearing impairment
HP:0100790Hernia
HP:0002036Hiatus hernia
HP:0002904Hyperbilirubinemia
HP:0001761Pes cavus
Occasional (29-5%)
HP:0010936Abnormality of the lower urinary tract
HP:0002169Clonus
HP:0007350Hyperreflexia in upper limbs
HP:0002495Impaired vibratory sensation
Very rare (<4-1%)
HP:0002034Abnormality of the rectum
HP:0010831Impaired proprioception
HP:0001250Seizure

Run the differential on the 2 obligate / very frequent terms

Annotation source: 16130112[PMID]

7

Sources for this card