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Spinal schwannoma - thoracic

Case contributed by Frank Gaillard
Diagnosis certain
mri

There is an extramedullary, intradural lesion, of lows T1 and high T2 signal, which is vividly, but heterogenously enhancing on post contrast images. 

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

Case Discussion

Final Diagnosis:

Intradural T9-T10 tumor, resection: Schwannoma.

Gross Description:

The specimen [..] consists of a smooth-surfaced pink-yellowish nodule measuring 2 X 1.4 X 0.8 cm.

Microscopic Description:

[...] neoplasm with the typical histologic features of schwannoma. The tumor cells are arranged in compact, interlacing bundles in the Antoni type A areas and in a more loose fashion in the Antoni type B areas. There is focal formation of Verocay bodies. Scattered throughout are thick-wall hyalinized blood vessels. Within the center of the neoplasm there are variably dilated cystic spaces, some of which contain blood. The tumor is well circumscribed and surrounded by a compressed fibrous tissue pseudocapsule.

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