Tuberculous abscess

Case contributed by Assoc Prof Frank Gaillard

Patient Data

Age: Adult
CT

Peripherally enhancing extra-axial left frontal lesion. Significant adjacent vasogenic edema in the left cerebral hemisphere with partial effacement of the lateral ventricle. More superiorly in the frontal lobe is an enhancing nodule. 

Case Discussion

The patient went on to have an evacuation of the collection.

Histology

Sections show a large area of caseating granulomatous inflammation associated with a fibrous type capsule, located superficially within the section of cerebral cortex. The ZN-stained sections confirm the presence of some scattered acid-fast bacilli.

Identification of mycobacteria on microscopy is usually seen to indicate a tuberculous abscess rather than tuberculoma. 

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Case information

rID: 6032
Published: 9th Apr 2009
Last edited: 13th Aug 2019
Tag: tb
Inclusion in quiz mode: Included

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