Snapshot A 3-year-old girl presents to a local hospital in rural Asia for sudden-onset weakness of the lower extremities over the past 2 days. Her parents report that it seems to affect the right leg more. She has not had any immunizations due to lack of access to hospitals. On physical exam, there is notable muscular atrophy of the right leg and absent reflexes on the right. Reflexes are weak on the left side. Sensation is normal bilaterally. Introduction Classification login to view 5 more bullets Epidemiology login to view 4 more bullets Pathogenesis login to view 2 more bullets Associated conditions login to view 2 more bullets Prevention login to view 8 more bullets Prognosis login to view 2 more bullets Presentation Symptoms login to view 5 more bullets Physical exam login to view 11 more bullets Studies Labs login to view 8 more bullets Making the diagnosis login to view 1 more bullet Differential Werdnig-Hoffmann disease login to view 2 more bullets Guillain-Barre syndrome login to view 2 more bullets Treatment Management approach login to view 2 more bullets Conservative login to view 6 more bullets Complications Progression to respiratory failure Permanent deformity