Heterotopic ossification presenting as acute arthritis.

Kun, E W; Barr, W G · J Rheumatol · 1992

case_report · Level V

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Abstract

We describe a patient with acute myeloblastic leukemia in remission who developed painful, swollen knees 6 weeks after being ventilated for acute respiratory distress syndrome. Synovial fluid analysis was nondiagnostic and initial radiographs of his knees were normal. Repeat radiographs 5 weeks later showed periarticular calcification and the diagnosis of heterotopic ossification was made. Heterotopic ossification should be part of the differential diagnosis of acute arthritis in critically ill patients.

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