raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:90020

Parkinson-dementia complex of Guam

Synonyms: G-PDC · Guam disease · Guam parkinsonism-dementia complex · Lytico-Bodig disease

Type
Disease
Group
Disorder
Status
active

A rare neurodegenerative disease characterized by extrapyramidal symptoms (rigidity, tremor, bradykinesia) and dementia, typically beginning in the fifth or sixth decade of life and progressing to a vegetative state with pelvicrural flexion contractures within few years. Oculomotor signs, olfactory dysfunction, and autonomic disturbances may also be observed. Neuropathological hallmarks are frontotemporally accentuated cerebral atrophy, as well as neurofibrillary tangles and neuronal loss in a characteristic distribution in cortical and subcortical regions. The disease is endemic to the Pacific island of Guam.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enParkinson-dementia complex of GuamG-PDC · Guam disease · Guam parkinsonism-dementia complex · Lytico-Bodig disease
frComplexe Parkinson-démence de GuamComplexe parkinsonisme-démence de Guam · Maladie de Guam · Maladie de Lytico-Bodig
deGuam-Parkinson-Demenz-KomplexG-PDC · Guam-Krankheit · Lytico-Bodig-Krankheit
esComplejo Parkinson-demencia de GuamCompejo parkinsonismo-demencia de Guam · Enfermedad 'Lytico-Bodig' · Enfermedad de Guam
itComplesso Parkinson-demenza di GuamComplesso parkinsonismo-demenza di Guam · G-PDC · Malattia "Lytico-bodig" · Malattia di Guam
nlParkinson - dementie-complex van GuamG-PDC · Parkinsonisme - dementie-complex van Guam · Ziekte van Guam · Ziekte van Lytico-Bodig
ptComplexo de Parkinson-demência de Guam
plKompleks stwardnienie zanikowe boczne -parkinsonizm-demencjaChoroba Guama · Choroba Lytico i Bodiga · Kompleks parkinsonizm-demencja-ALS · PDALS · Stwardnienie zanikowe boczne -parkinsonizm-demencja Guama
csKomplex zahrnující amyotrofickou laterální sklerózu, parkinsonismus a demenciAmyotrofická laterální skleróza, parkinsonismus a demence u nemoci ostrova Guam · Nemoc ostrova Guam · Lytico-Bodig syndrom · PDALS · Komplex zahrnující parkinsonismus, demenci a ALS · Guamská forma ALS
ukКомплекс паркінсонізму та деменції ГуамуG-PDC · Гуамська хвороба · Гуамський комплекс паркінсонізму та деменції · Хвороба Літіко-Бодіга
zh肌萎缩侧索硬化症-帕金森症-痴呆综合征肌萎缩性脊髓侧索硬化-帕金森症-Guam痴呆综合征
trAmyotrofik lateral skleroz-parkinsonizm-demans kompleksiPDALS · Guam hastalığı · Lytico-Bodig hastalığı · Parkinsonizm-demans-ALS kompleksi · Amiyotrofik lateral skleroz-parkinsonizm-Guam sendromu demansı

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM105500Evalidated
ICD-10G12.2NTBTattributedvalidated
ICD-116D85.YNTBTindexvalidated
MONDO0007104Evalidated
UMLSC0543859Evalidated
GARD9239Evalidated

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

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
PARK7Major susceptibility factor inNot yet assessedHGNC:16369ENSG000001162886025331p36.23Parkinsonism associated deglycase
TRPM7Major susceptibility factor inNot yet assessedHGNC:17994ENSG0000009243960569215q21.2transient receptor potential cation channel subfamily M member 7
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Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card