Fig. 18From: Brain tumour post-treatment imaging and treatment-related complicationsPostoperative complication: abscess. A 45-year-old female with a history of right parietal lobe anaplastic astrocytoma resection. Initial post-resection imaging demonstrates faint peripheral enhancement of the surgical cavity (arrow) and no internal diffusion restriction. About 4 months after, the patient described a persistent “scab” over the surgical site, increasing headaches, and subjective fever. Repeat imaging shows thick rim enhancement (bracket) with internal diffusion restriction (arrowhead), consistent with abscess formation, confirmed intraoperativelyBack to article page