Bilateral lunotriquetral coalition

Case contributed by Samir Benoudina
Diagnosis certain

Presentation

55 year old women with atraumatic pain of both hands and wrists. Ball catcher view was performed.

Patient Data

Age: 55 years
Gender: Female

Bilateral and complete fusion of the lunate and triquetrum representing an osseous luno-triquetral coalition.

Annotated image

Bilateral and complete fusion of the lunate and triquetrum representing an osseous luno-triquetral coalition.

Case Discussion

Lunotriquetral coalition is the most frequent type of carpal coalition. It is often bilateral and asymptomatic. It is more common in women.

The ball-catcher view is useful for finding early erosions at the base corners of the proximal phalanges, in arthropathies such as rheumatoid arthritis.

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