Radiology Quiz 180505 | Radiopaedia.org

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Questions
Findings

Question 1

Which imaging modality would you use first if a patient's presentation is suspicious for distal clavicular osteolysis?

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Plain radiographs are usually sufficient to make a diagnosis

Question 2

Which joints in the shoulder complex are affected by distal clavicular osteolysis?

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The acromioclavicular joint is typically involved.

Question 3

Which muscles are closely related to the distal clavicle and play a role in shoulder movements?

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Muscles in this region include the deltoid, pectoralis major, and trapezius, which attach nearby and contribute to shoulder movement.

Question 4

Describe the ligaments and tendons associated with the clavicle that may be affected by osteolysis in this region?

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The ligaments in this region include the coracoclavicular ligaments (conoid and trapezoid ligaments) and the acromioclavicular ligament. Tendons of the shoulder, such as the rotator cuff tendons, are also closely associated.

Presentation

The patient reported persistent shoulder pain that worsened during overhead movements, accompanied by tenderness and restricted shoulder mobility. Physical examination revealed localized tenderness and swelling over the distal clavicle, along with notably limited abduction and external rotation. The patient's history was remarkable for vigorous weight training of the upper extremities.

Patient Data

Age:	25 years
Gender:	Female