PMC9896987_01
Osteoarthropathy. Joint distortion/enlargement of joint contour with swelling of periarticular soft tissues with contracture of the knee joints and partial atrophy of the thigh muscles in a female patient (patient No. 1) with primary hypertrophic osteoarthropathy, with juvenile idiopathic arthritis (JIA) diagnosed and unsuccessfully treated in the past
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F1
Local atrophy of the quadriceps muscles of the thighs was observed in 2 children (Fig. 1).