title: Progressive supranuclear palsy phenotype mimicking synucleinopathies.
abstract: BACKGROUND
  Atypical parkinsonian syndromes are currently divided into two groups based on their pathological appearance: synucleinopathies and tauopathies. Based on recent clinico-pathological studies it is increasingly clear, that some pathological characteristics are shared by both groups.
  
  
  OBJECTIVE
  To describe two pathologically proven cases of tauopathy manifesting in vivo in two typical synucleinopathy phenotypes: multiple system atrophy and dementia with Lewy bodies.
  
  
  METHODS
  There were 67-year-old woman with a phenotype of multiple system atrophy and a 70-year-old man with a phenotype of dementia with Lewy bodies. The clinical diagnosis was based on the commonly used clinical diagnostic criteria. A detailed neuropathological examination of the brain was conducted post-mortem in both cases.
  
  
  RESULTS
  The overall pathological picture corresponded with a rare combination of two neurodegenerative entities: 4R tauopathy (meeting the diagnostic criteria for typical progressive supranuclear palsy) and neocortical stage of Alzheimer's disease.
  
  
  CONCLUSIONS
  The interesting feature in both our cases was the presence of dual pathology: diffuse tauopathy and Alzheimer's pathology. We believe, that our two unique cases should serve as an evidence that tauopathies such as CBS and PSP might mimic practically anything from the family of atypical parkinsonian syndromes, particularly when another concomitant neurodegenerative disease is present.
authors.affiliation: Department of Neurology, Palacky University Medical School, Olomouc, Czech Republic. katerina.mensikova@fnol.cz
authors.forename: Kateřina
authors.initials: K
authors.lastname: Menšíková
authors.forename: Radoslav
authors.initials: R
authors.lastname: Matěj
authors.forename: Lucie
authors.initials: L
authors.lastname: Tučková
authors.forename: Robert
authors.initials: R
authors.lastname: Rusina
authors.forename: Jiří
authors.initials: J
authors.lastname: Ehrmann
authors.forename: Petr
authors.initials: P
authors.lastname: Kaňovský
mesh_terms: D000368:Aged; D016229:Amyloid beta-Peptides / Q000378:metabolism; D016657:Cerebral Amyloid Angiopathy; D005260:Female; D006801:Humans; D020961:Lewy Body Disease / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D008297:Male; D019578:Multiple System Atrophy / Q000175:diagnosis*; D010641:Phenotype; D013494:Supranuclear Palsy, Progressive / Q000473:pathology*; D051843:Synucleins / Q000378:metabolism*
chemical_list: D016229:Amyloid beta-Peptides; D051843:Synucleins