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Pyogenic cerebral abscess in early capsule stage

Case contributed by Charlie Chia-Tsong Hsu
Diagnosis almost certain

Presentation

Left frontal headache. Febrile.

Patient Data

Age: 45 years
Gender: Male

Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.

Round mass in the left frontal lobe with a hypointense center on T1 (A) and hyperintense on T2/FLAIR (B and C). Vasogenic edema surrounding the mass. The rim of the mass is mildly hyperintense on T1(A)  and hypointense on T2 (B) and GRE (image 4). The central core of the mass restrict strongly on the DWI/ADC map (D and E). Post-contrast T1 (F) demonstrates a thin enhancing rim, which is thinnest on the side facing the lateral ventricle. No evidence of ventricular rupture/involvement.

Case Discussion

Imaging features together with clinical history are consistent with a cerebral abscess in the late cerebritis and early capsule stage. 

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