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Os radiale externum

Case contributed by Levente István Lánczi
Diagnosis certain

Presentation

A 5 mm palpable palmar mass at wrist.

Patient Data

Age: 35 years
Gender: Male

Wrist X-ray

x-ray

An accessory bone is seen laterally to the scaphoid bone. Otherwise normal anatomy.

Annotated images

Annotated image

The accessory bone is annotated on the images.

Case Discussion

A carpal accessory bone is detected radially to the scaphoid.

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