Isolated tuberculosis of the navicular bone in a child.

Tuberculosis is a topical issue in endemic countries. Foot involvement is rare and accounts for 5-10% of all osteoarticular tuberculosis. Pediatric cases of osteoarticular tuberculosis are uncommon especially in well vaccinated children. The clinical presentation is not specific and can be confused with common germ like staphylococcus. Biopsy is mandatory in endemic zone, and if the evolution is not good with antibiotherapy. Debridement can be indicated but must be gentle, because of the risk of navicular necrosis.