Beleza, PSoares-Fernandes, JJordão, MJAlmeida, F2013-06-212013-06-212008Eur J Paediatr Neurol. 2008;12(6):505-7.http://hdl.handle.net/10400.23/448We report the case of a 16-year-old boy presented with a mild akinetic-rigid parkinsonism shortly after a post-streptococcal infection. After stopping corticoids, he had a rapid neurological deterioration to a fatal encephalitis lethargica-like syndrome. Serum analysis demonstrated consistently elevated anti-streptolysin-O. This case illustrates a new severe phenotype in the spectrum of the post-streptococcal disorders. This etiology should be considered in the differential diagnosis of a movement disorder with a rapid detrimental evolution.engDoença de Parkinson Pós-EncefalíticaInfecções por StreptococcusAdolescentejournal article