Low-grade osteomyelitis of the fifth metatarsal with possible concomitant Freiberg's disease of the metatarsal head.

Freiberg's disease, metatarsal avascular necrosis, is most often seen in healthy athletic adolescent girls. Presenting symptoms include vague pain, swelling, and loss of motion in the involved metatarsophalangeal joints. Low-grade osteomyelitis often is difficult to identify. In this case report, we present a 14-year-old girl with low-grade osteomyelitis of the fifth metatarsal accompanied by possible Freiberg's disease in the same metatarsal.