raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:240094

Progressive supranuclear palsy-pure akinesia with gait freezing syndrome

Synonyms: PSP-PAGF · PSP-pure akinesia with gait freezing

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Not applicable
Age of onset
Adult
Status
active

An atypical variant of progressive supranuclear palsy (PSP), a rare late-onset neurodegenerative disease, characterized by progressive freezing of gait, speech and writing early in the disease course. Later, axial rigidity, and facial immobility can occur, and supranuclear downgaze paresis may emerge after a decade. Neuropathological characteristics include tau pathology and neuronal loss in specific brain areas, especially in the globus pallidus, subthalamic nucleus, and substantia nigra. The tau pathology is less widespread compared to the other PSP sub-types.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enProgressive supranuclear palsy-pure akinesia with gait freezing syndromePSP-PAGF · PSP-pure akinesia with gait freezing
frSyndrome de paralysie supranucléaire progressive-akinésie pure avec freezing de la marchePSP-PAGF · PSP-akinésie pure avec freezing de la marche
deProgressive supranukleäre Blickparese-reine Akinesie mit Gang-Blockaden-SyndromPSP-Akinesie mit Gang-Blockaden · PSP-PAGF
esSíndrome de parálisis supranuclear progresiva-acinesia pura con congelación de la marchaPSP-PAGF · PSP-acinesia pura con congelación de la marcha
itSindrome paralisi sopranucleare progressiva-acinesia pura con blocco della marciaPSP-PAGF · PSP-acinesia pura con freezing della deambulazione
nlProgressieve supranucleaire paralyse - zuivere akinesie met gangblokkade-syndroomPSP-PAGF · PSP-zuivere akinesie met gangblokkade · Progressieve supranucleaire verlamming - zuivere akinesie met gangblokkade-syndroom
ptSíndrome de paralisia supranuclear progressiva-acinésia pura com paralisia da marcha
plPostępujące porażenie nadjądrowe - czysta akinezja z zamrożeniem choduPSP-czysta akinezja z zamrożeniem chodu · PSP-PAGF
csSyndrom zahrnující progresivní supranukleární obrnu a čistým akinetickým freezingem chůzePSP‑ PAGF · PSP s čistým akinetickým freezingem chůze
ukСиндром прогресуючого надядерного паралічу-чистої акінезії із завмиранням ходиPSP-PAGF · PSP - чиста акінезія із завмиранням ходи
zh进行性核上性麻痹-完全运动不能伴冻结步态PSP-完全运动不能伴冻结步态
trYürüme donması sendromu ile seyreden ilerleyici supranükleer felç-saf akineziPSP-PAGF · Yürüyüş donması ile seyreden PSP-saf akinezi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM260540NTBTvalidated
ICD-10G23.1NTBTattributedvalidated
ICD-118A00.10NTBTindexvalidated
MONDO0016562Evalidated
UMLSC5679851Evalidated

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
MAPTMajor susceptibility factor inAssessedHGNC:6893ENSG0000018686815714017q21.31microtubule associated protein tau
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Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 100 000—EuropeClass onlyValidated[EXPERT]

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

21 annotations · validated 2018-12-31
HPOTerm (as annotated by Orphanet)Diagnostic
Obligate (100%)
HP:0002304Akinesia
HP:0031825Freezing of gait
Very frequent (99-80%)
HP:0002317Unsteady gait
Frequent (79-30%)
HP:0031434Abnormal speech prosody
HP:0005329Fixed facial expression
HP:0002141Gait imbalance
HP:0031908Micrographia
HP:0031814Palilalia
HP:0002464Spastic dysarthria
HP:0031937Tachylalia
HP:0001621Weak voice
Occasional (29-5%)
HP:0000726Dementia
HP:0009053Distal lower limb muscle weakness
HP:0002527Falls
HP:0002505Loss of ambulation
HP:0007311Short stepped shuffling gait
Very rare (<4-1%)
HP:0000643Blepharospasm
HP:0000571Hypometric saccades
HP:0000657Oculomotor apraxia
Excluded (0%)
HP:0002067Bradykinesia
HP:0002063Rigidity

Run the differential on the 3 obligate / very frequent terms

Annotation source: 28356654[PMID]_29051824[PMID]_27624121[PMID]

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Sources for this card