Skeletal radiology
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Review Meta Analysis
Intraosseous lipoma: report of 35 new cases and a review of the literature.
To identify the common imaging features of intraosseous lipomas on radiographs, magnetic resonance imaging (MRI) and computed tomography (CT), and review their histological features. ⋯ Although there is correlation between the histological and radiological features of intraosseous lipomas in general, some discrepancies occur in the radiological appearances of lipomas in different sites. The evidence that these lesions are true benign tumours of fat is controversial. Several aetiological factors have been implicated in their development. The constant location of os calcis lesions at the critical angle suggests an aetiology that may be related to biomechanical lines of stress. In other instances it is possible that involution of pre-existing lesions may lead to the development of lipomas.
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Palmar dislocation of the trapezoid is a rare injury, which results from substantial trauma to the wrist. It is associated with other bony or ligamentous injuries in the wrist. ⋯ Treatment of choice is open reduction and internal fixation, which generally achieves good functional results. We describe a new case of palmar dislocation of the trapezoid and review the world literature with emphasis on the radiographic findings.
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We describe a case of inferior glenohumeral subluxation or drooping shoulder secondary to acute calcific tendinitis of the rotator cuff. The various etiologies of drooping shoulder and the specific causes determining glenohumeral widening in our report are discussed. The importance in recognizing this uncommon complication of a common abnormal finding and correction by aspiration is stressed.
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This report documents the clinical, radiographic and histologic findings in a 46-year-old man with calcifying tendinitis in his left shoulder which progressed to rotator cuff tear. The patient had a 1-year history of repeated calcifying tendinitis before being referred to our hospital. ⋯ Surgical and histologic findings demonstrated that calcium deposition was the cause of cuff rupture. To our knowledge, based on a review of the English literature, this is the first case report in which the progression from calcifying tendinitis to rotator cuff tear has been serially observed.
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Case Reports
Anaerobic osteomyelitis of femoral head with intraosseous, intra-articular, bursal and muscle pneumatosis.
A case is presented of anaerobic osteomyelitis with intraosseous pneumatosis resulting in extension of gas in soft tissue structures and femur in a patient with mitral valve vegetation and bacteremia. The finding of intraosseous pneumatosis and its extension into the hip joint, iliopsoas bursa and subgluteus medius bursa is depicted. Intraosseous pneumatosis is a rare but concerning finding for osteomyelitis in the absence of a penetrating wound, recent surgery, biopsy or fracture.