Pyogenic cerebral abscess in early capsule stage
Left frontal headache. Febrile.
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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) demonstrate thin enhancing rim, which is thinnest on the side facing the lateral ventricle. No evidence of ventricular rupture/involvement.
Imaging features togeather with clinical history is consistent with a cerebral abscess in the late cerebritis and early capsule stage.