Turret exostosis

Last revised by Ashesh Ishwarlal Ranchod on 29 Mar 2023

Turret exostoses are benign osteocartilaginous lesions.

Pathology

A turret exostosis is believed to arise from reactive periosteum after relatively mild trauma. It is usually seen as a smooth dome-shaped parosteal bone proliferation. 

Location 

Turret exostoses are most often found in the phalanges but may also present in rare sites such as the talus 1.

Differential diagnosis

In certain situations, consider:

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