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Cerebral abscess

Case contributed by Anandapadmanabhan J
Diagnosis almost certain

Presentation

Left upper limb weakness in a patient with a background of IV drug abuse

Patient Data

Gender: Female

CT post contrast

ct

Multiple well defined ring enhancing lesion with significant perilesional edema and mass effect.

mri

Multiple ring-enhancing lesion noted in the right high frontal lobe, temporal lobe and left anterior frontal lobe as seen on the CT with significant perilesional edema. These lesions show central low signal on T1 weighted images, high signal on T2/FLAIR and appears to show central true restricted diffusion

Periphery of the lesion appears hypo-intense on the T2 weighted images. Dual rim sign is appreciated on T2-weighted imaging.

There is mass-effect with cortical sulcal over the right cerebral cortex and body of lateral ventricle.

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