63 practice MCQs across 13 topics
Which of the following muscle groups is primarily affected in a typical case of Erb's palsy, leading to the characteristic adducted and internally rotated shoulder posture?
A 22-year-old male presents with his third episode of anterior shoulder dislocation in two years. He is a competitive swimmer. MRI reveals an avulsion of the anterior-inferior labrum from the glenoid rim. This specific lesion is known as:
A 16-year-old male presents with progressive pain and swelling around his right knee for the past three months. X-rays reveal a lytic and sclerotic lesion in the distal femur with a 'sunburst' periosteal reaction and Codman's triangle. Which of the following is the most likely diagnosis?
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