Dyke Davidoff Masson Syndrome in a Functionally Independent Adult With Childhood Onset Hemiparesis: A Case Report

Dyke-Davidoff-Masson syndrome (DDMS) is a rare neurological disorder characterized by cerebral hemiatrophy, contralateral hemiparesis, facial asymmetry, and recurrent seizures. It typically presents during childhood, while diagnosis in adulthood is uncommon, particularly in individuals who remain functionally independent. We report the case of a 37-year-old male with childhood-onset hemiparesis who remained ambulatory and independent in activities of daily living. The diagnosis of DDMS was established incidentally on magnetic resonance imaging (MRI) during evaluation for an unrelated illness. This case highlights the variable clinical spectrum of DDMS and emphasizes that mild cases may remain undiagnosed until adulthood.