Cavernoma - medial temporal

Case contributed by RMH Neuropathology

Presentation

Seizures.

Patient Data

Age: 44
Gender: Male
Modality: MRI

In the right medial temporal lobe, an area of marked haemosiderin deposition is associated with 'blooming artefact'.

The lesion measures 7.8 x 9.3 by 8.3 mm.

The imaging features remain entirely consistent with an incidental cavernoma.

There has been no change in the hippocampal formation, with a small hippocampal fissure remnant cyst (not shown).

Targeted post contrast imaging reveals no evidence of associated developmental venous anomaly, although there is marked focal enhancement seen centrally.

IMPRESSION:

Right medial temporal cavernoma.

Case Discussion

Cerebral cavernous venous malformations are common cerebral vascular malformations, usually with characteristic appearances on MRI, like on this case: characteristic “popcorn” or "berry" appearance with a rim of signal loss due to haemosiderin, which demonstrates prominent blooming on susceptibility weighted sequences.

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Case Information

rID: 34407
Case created: 18th Feb 2015
Last edited: 17th Dec 2015
Inclusion in quiz mode: Included

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