Os acromiale

Case contributed by Safwat Mohammad Almoghazy
Diagnosis certain

Presentation

History of a road traffic accident and right shoulder pain.

Patient Data

Age: 35 years
Gender: Female
ct

CT images demonstrate an extra ossicle known as os acromiale between the acromial process and the clavicle. Three-dimensional reconstructions have been shown to be of use.

conclusion:

Os acromiale (normal variant) with no radiological evidence of fracture. 

Case Discussion

Os acromiale is a failure of fusion of the acromial process. It is usually asymptomatic and discovered incidentally as in our case, and should not be mistaken as a fracture.

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