Raschs sign, also known as the "Menzel phenomenon", refers to a medical condition where a patient experiences weakness or paralysis on one side of their body due to a lesion in the brain. This condition frequently manifests as contralateral hemiplegia, meaning the impairment occurs on the opposite side of the affected hemisphere. Synonyms for Raschs sign include hemiplegia, unilateral paralysis, cross-sided weakness, or contralateral paresis. These terms all describe the same phenomenon, wherein the patient exhibits difficulty or inability to move one side of their body due to a brain lesion. Raschs sign is an important clinical indicator for various neurological diagnoses and evaluations.