A number of conditions may mimic septic arthritis.
Infectious conditions that may mimic septic arthritis:
(1) abscess near the joint
(2) cellulitis
(3) Lyme disease
(4) osteomyelitis
Non-infectious conditions that may mimic septic arthritis:
(1) avascular necrosis
(2) crystal-induced arthropathy
(3) malignancy
(4) reactive arthritis
(5) rheumatoid arthritis
(6) transient synovitis
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Specialty: Infectious Diseases
