Recurrent Reversible Stroke-Like Encephalopathy After 5-Fluorouracil (5-FU) Chemotherapy: A Case Report and Literature Review.

BACKGROUND Chemotherapy based on 5-fluorouracil (5-FU) is a well-established treatment for solid cancers, including metastatic or advanced colon cancer. Despite its efficacy, 5-FU can cause rare but serious adverse events such as acute neurotoxicity, which presents as symptoms similar to stroke. CASE REPORT We report the case of a patient who was diagnosed with stage IV colorectal cancer and who underwent chemotherapy with a high dose of 5-FU as part of the FOLFIRI (Folinic Acid, Fluorouracil, Irinotecan) treatment plan.