Tuberculous Osteomyelitis Mimicking a Lytic Bone Tumor: Report of Two Cases and Literature Review.

Tuberculous osteomyelitis is an uncommon form of tuberculosis (TB); the isolated involvement of the wrist joint is particularly rare. The symptoms and clinical manifestation mimic other conditions; hence, careful diagnosis is required. The authors present two cases of patients presenting with soft tissue mass and a lytic bone lesion. The biopsy revealed granulomatous osteomyelitis. Lesion culture identified Mycobacterium tuberculosis . The authors urge clinicians to include TB as a differential diagnosis when investigating the primary cause of lytic bone lesions, even in the absence of pulmonary symptoms or risk factors of TB infection. The inclusion of mycobacterial cultures when analyzing biopsies of lytic bone lesions is also advised.