{Reference Type}: Case Reports {Title}: Case report: Isolated brainstem-cerebellar symptoms in a patient with anti-NMDA receptor encephalitis. {Author}: Xu Y;Tao Q;Dong Y;Zhang Y; {Journal}: Front Immunol {Volume}: 15 {Issue}: 0 {Year}: 2024 {Factor}: 8.786 {DOI}: 10.3389/fimmu.2024.1388667 {Abstract}: Cerebellar ataxia is an uncommon and atypical manifestation of anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis, often accompanied by seizures, psychiatric symptoms, and cognitive deficits. Previous cases of isolated brainstem-cerebellar symptoms in patients with anti-NMDAR encephalitis have not been documented. This report presents a case of anti-NMDAR encephalitis in which the patient exhibited cerebellar ataxia, nystagmus, diplopia, positive bilateral pathological signs, and hemiparesthesia with no other accompanying symptoms or signs. The presence of positive CSF anti-NMDAR antibodies further supports the diagnosis. Other autoantibodies were excluded through the use of cell-based assays. Immunotherapy was subsequently administered, leading to a gradual recovery of the patient.