Which procedures are performed in the diagnosis of juvenile idiopathic arthritis (JIA)?

Updated: Jul 25, 2019
  • Author: David D Sherry, MD; Chief Editor: Lawrence K Jung, MD  more...
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Perform dual energy radiographic absorptiometry (DRA) scanning to document osteopenia in children with JIA, especially in children requiring long-term steroids (systemic JIA) or with prolonged widespread arthritis.

Perform arthrocentesis to exclude septic arthritis in a child with monoarticular swelling. Synovial biopsy may be helpful to exclude other diagnoses, particularly when the knee is affected (eg, villonodular synovitis, granulomatous arthritis, foreign body synovitis). Synovial biopsy may reveal synovial infiltration with plasma cells, mature B lymphocytes, and T lymphocytes, with areas of synovial thickening and fibrosis.

Pericardiocentesis is used in an intensive care unit (ICU) setting to treat severe pericarditis.

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