Round # 10

• Back to Clinical History and Radiographs
• What is the Differential Diagnosis?
• What is the Correct Diagnosis?

Radiographic Findings

Plain X-rays (film on left) of the upper extremities reveal a large, solitary, centrally-located expansile lesion in the shaft of the right humerus (yellow arrow). There is a hazy, ground-glass appearance to the lesion, and it is surrounded by a zone of reactive sclerosis and hypertrophied cortex (red arrow). Radiographs of the other extremities are normal. (film on right)

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