A report of an intracortical chondroblastoma of the diaphysis in a skeletally mature patient.

Sauer, Madeline A; Stegelmeier, Paul; Crim, Julia R; Layfield, Lester J; Evenski, Andrea · Skeletal Radiol · 2022

case_report · Level V

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Abstract

Chondroblastomas characteristically occur in skeletally immature patients, and arise within the medullary canal of the epiphysis. We report a rare case of an intracortical chondroblastoma arising in the diaphysis, and occurring in an adult in his 3<sup>rd</sup> decade of life. Immunohistochemistry results were critical to confirmation of this rare diagnosis, with immunohistochemistry showing S100, DOG1, and H3K36me3 positivity in the neoplastic cells.

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