Pearls & Oy-sters: Bibrachial Amyotrophy From a Dural Tear.

Bibrachial amyotrophy signifies a clinical phenotype characterized by weakness in both upper extremities with preserved strength in the face, neck, and lower extremities. The underlying causes of bibrachial amyotrophy are broad. We report a patient exhibiting bibrachial amyotrophy who initially received a diagnosis of amyotrophic lateral sclerosis (ALS); however, his clinical course and NCS/EMG were atypical for ALS.

New generation VMAT2 inhibitors induced parkinsonism.

•Drug induced parkinsonism caused by valbenazine and deutetrabenazine.•Possible side effects of VMAT-2 inhibitors.•Valbenazine and deutetrabenazine can unmask underlying Parkinson's Disease.