5 Days Of Left in Medicine / Internal Medicine — 65yo Woman | Rheumatology | SMLE Q#19037
SMLE Question #19037
Medicine / Internal Medicine
Rheumatology
Objective: OBJ-IM-RHEUM-012
Last updated: March 2026
A 65-year-old woman presents to an outpatient clinic with 5 days of left knee pain and swelling. The pain worsens with walking and improves with rest. She denies fever, rash, small-joint symptoms, or prolonged morning stiffness. Examination shows a left knee effusion with crepitus and pain on range of motion, without marked warmth or erythema. Knee radiograph shows joint space narrowing and osteophytes. Arthrocentesis is performed and fluid analysis is obtained. What is the most likely type of arthritis?
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