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Healed rib fractures presenting as linear foci of increased tracer uptake on bone scintigraphy.

A case of healed rib fractures presenting as linear foci of increased tracer uptake on bone scintigraphy is presented. A 58-year-old woman was referred for bone scintigraphy because of increasing left chest pain. Her history included osteoporosis but no cancer. The Tc-99m MDP bone scan showed abnormal linear foci of intense increased tracer uptake along the left eighth and ninth ribs posteriorly and the right eighth rib posteriorly. Excision biopsy of the posterior left eighth and ninth ribs was macroscopically normal externally, and sectioned bony surfaces and histologic analysis confirmed healed rib fractures.