Persistent ulnar styloid ossicle

Case contributed by Bahman Rasuli
Diagnosis almost certain


Wrist trauma.

Patient Data

Age: 55 years
Gender: Male

Well-corticated ossification just adjacent to the ulnar styloid

No fracture. 

Case Discussion

Persistent ulnar styloid ossicle has to differential diagnosis:

Os triangular: a small accessory ossicle located between the ulnar styloid, lunate, and triquetrum

Ununited old ulnar styloid fracture.

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