Lateral erosion of the clavicle

Case contributed by Ian Bickle
Diagnosis certain


Psoriatic arthritis. Chest x-ray prior to starting biological therapy.

Patient Data

Age: 45 years
Gender: Female

Erosion of the lateral (distal) end of the left clavicle.  Right ACJ normal.

Heart size normal.

Lungs clear.

Case Discussion

Lateral (or distal) erosion of the clavicle has multiple causes which include:

- post traumatic

- myeloma

- hyperparathyroidism

- rheumatoid disease, scleroderma and other spondylarthritides ( as in this case of psoriatic arthritis )

This is a very classic fellowship viva film as:

- Can you spot it?

- Have you heard of it?

- Do you know the potential causes?

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