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Posterior Reversible Encephalopathy Syndrome (PRES) Following Fruquintinib in a Normotensive Patient With Metastatic Colorectal Cancer: A Case Report

Year: 2025

Type: article

Abstract: We report a rare case of posterior reversible encephalopathy syndrome (PRES) following fruquintinib treatment in a 71-year-old female with metastatic colorectal adenocarcinoma harbouring a KRAS G12D mutation. The patient had previously undergone multiple lines of chemotherapy and surgical resections with stable disease before receiving fruquintinib under compassionate access. After two cycles, she developed headaches and acute encephalopathy. MRI confirmed PRES without associated hypertension. Fruquintinib was discontinued, and the patient made a full neurological recovery. This case highlights a rare but significant toxicity of anti-vascular endothelial growth factor (VEGF) therapy in the colorectal cancer setting and underscores the importance of early radiological evaluation in suspected PRES.

Source: Cureus

DOI: 10.7759/cureus.97598

Authors: Rawan ElManfalouty, Ahmed Holayel, Ian Russell, Kalena Marti

Institutions: The Christie Hospital, The Christie NHS Foundation Trust, Maidstone and Tunbridge Wells NHS Trust

Language: English

Topic: Neurological Complications and Syndromes

Subfield: Psychiatry and Mental health

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: diamond

OpenAlex ID: W4416608221