{Reference Type}: Case Reports {Title}: Capecitabine-induced posterior reversible encephalopathy syndrome (PRES) in a patient with gastric adenocarcinoma. {Author}: Dirani K;Marusca G;Wang J;Juzych D; {Journal}: BMJ Case Rep {Volume}: 16 {Issue}: 11 {Year}: 2023 Nov 30 暂无{DOI}: 10.1136/bcr-2022-252059 {Abstract}: Posterior reversible encephalopathy syndrome (PRES) is characterised by encephalopathy, visual disturbances and seizures, accompanied by radiological parieto-occipital oedema. Immunosuppressive and immunomodulatory drugs are risk factors. While capecitabine-induced PRES cases are rare, this report details a young woman with advanced gastric adenocarcinoma on capecitabine. She exhibited symptoms of nausea, vomiting and abdominal pain before developing hypertension, drowsiness and a seizure. Brain MRI revealed parieto-occipital hyperintense areas indicative of PRES. Suspending capecitabine led to a gradually improved mental state. Prompt recognition and treatment of PRES offer reversibility, often achievable through dose reduction or discontinuation of the causative drug.