Demir, Y.Sürücü, E.Çilingir, V.Bulut, M.D.Tombul, T.2025-05-102025-05-1020151536-022910.1097/RLU.00000000000008902-s2.0-84965091028https://doi.org/10.1097/RLU.0000000000000890https://hdl.handle.net/20.500.14720/4900A 23-year-old man with Dyke-Davidoff-Masson syndrome (DDMS) was admitted to the hospital with increasing frequency of epileptic seizures. Physical examination revealed mental retardation, left facial asymmetry, and left-sided spastic hemiparesis. Dysdiadochokinesia on the left upper limb was detected, and there was no dysmetria. MRI confirmed the well-known radiological features of DDMS. PET/CT demonstrated cerebral and contralateral cerebellar hypometabolism. We present DDMS with crossed cerebellar diaschisis, which was demonstrated by PET/CT.eninfo:eu-repo/semantics/closedAccessArticle409Q1Q375775826164180