Turret exostose

Turret exostoses are a benign osteocartilaginous lesion.

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 .

Differential diagnosis

In certain situations, consider:

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