Mimics or Multiplicity: 2 Cases of Rare Neurological Conditions Discovered Following Presentation with Richardson's Syndrome Phenotype.
Mov Disord Clin Pract
; 10(3): 482-485, 2023 Mar.
Article
en En
| MEDLINE
| ID: mdl-36949781
ABSTRACT
Background:
Progressive supranuclear palsy (PSP)-Richardson's syndrome (RS) presents with a distinctive clinical phenotype of supranuclear ophthalmoplegia, parkinsonism, postural instability with falls, and cognitive impairment. Several rare neurological conditions have been described that mimic PSP, and the co-occurrence of dual pathologies has also been described. Cases In this article, we present 2 cases of patients who presented with a parkinsonian phenotype suggestive of PSP-RS. In 1 case, a family history and early levodopa-induced chorea led to testing for Huntington's disease, and a pathogenic HTT mutation was found. In the second case, magnetic resonance imaging findings led to genetic confirmation of a pathogenic FMR1 mutation.Conclusions:
These observations raised the possibility that HD and fragile-X tremor-ataxia syndrome may on occasion present with PSP-RS. Alternatively, and perhaps more likely, is the co-occurrence of 2 rare neurodegenerative conditions. Neuropathological studies of cases involving complex phenotypes in rare genetic conditions are required to better understand the likely pathologies in cases such as these.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Mov Disord Clin Pract
Año:
2023
Tipo del documento:
Article