Os triangulare

Case contributed by Dr Henry Knipe


Fall. Painful wrist.

Patient Data

Age: 22
Gender: Male

Well corticated bony fragment distal to the ulna fovea, adjacent to the ulna styloid. Most consistent with an accessory ossicle - os triangulare

Annotated image

Annotated image thanks to Dr Ian Bickle.

Case Discussion

Accessory ossicles are an important differential diagnosis to fractures, especially in the wrist where more than 20 have been documented. 

PlayAdd to Share

Case information

rID: 25054
Published: 1st Oct 2013
Last edited: 14th Aug 2019
Inclusion in quiz mode: Excluded

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.