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Abstract
Osteomyelitis caused by nontuberculous mycobacterium (NTM) is rare in immunocompetent children, and is often difficult to differentiate from a bone tumor, juvenile rheumatoid arthritis, soft-tissue inflammation and subacute osteomyelitis. We report NTM osteomyelitis in immunocompetent children that developed at the left distal femoral epiphysis in a 24-month-old boy and at both tali in a 7-year-old boy.
Figures and Tables
Fig. 1
Case 1. Plain radiograph shows radiolucent lesion with some irregularity at the distal femoral epiphysis and mild soft tissue swelling around distal thigh.
Fig. 2
Case 1. Contrast enhanced T1-weighted MR images show bony lesion with enhancement at the distal femoral epiphysis.
Fig. 3
Case 1. Plain radiographs. (A) At 3 months after latest operation. Well-defined osteolytic lesion at left distal femur metaphysis and epiphysis. (B) 9 months after latest operation. Showing a sclerotic demarcation. (C) 18 months after latest operation. Well healing status of osteomyelitis without an evidence of recurrence.
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