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A case of Mycobacterium scrofulaceum osteomyelitis of the right wrist
L L Phoa1, K S Khong, T P Thamboo
1Department of Medicine, Alexandra Hospital, 378 Alexandra Road, Singapore 159964.
Introduction:
The objective of the case report is to highlight the possibility of osteomyelitis caused by atypical mycobacteria. Such an infection may simulate tuberculous bone infection and yet fail to respond to standard anti-tuberculous drug therapy.
Clinical Picture:
A 66-year-old man who suffered from diabetes mellitus presented with osteomyelitis of the right wrist, with extensive synovial swellings of the flexor tendon sheaths. The clinical features, radiological appearances and histology suggested a tuberculous infection, but subsequent culture grew an atypical mycobacterium, Mycobacterium scrofulaceum.
Treatment And Outcome:
There was good clinical improvement and control of the infection with a regime of kanamycin, ethambutol and ethionamide to which the organism was sensitive.
Conclusion:
This case illustrates the need to be aware of the possibility of infection with atypical mycobacteria in cases of suspected tuberculosis of the skeletal system which fail to respond to standard treatment.
