Ancient schwannoma

Last revised by Frank Gaillard on 24 Feb 2022

Ancient schwannomas are long-standing, benign (WHO grade 1) slow growing schwannomas with advanced degeneration. The term “ancient” has been traditionally used to describe schwannomas showing degenerative changes and diffuse hypocellular ischemic areas 1-3,9.


These tumors demonstrate nuclear pleomorphism microscopically, which should not be misinterpreted as malignant features 4,9

Radiographic features

Features of calcification, hyalinization, and cystic cavitation can be identified on imaging 1-3.

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