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Demonstration of renal lithiasis on technetium-99m MDP bone scintigraphy.

Renal lithiasis shown on technetium-99m MDP bone scintigraphy is uncommon. The author reports two cases of this unusual finding. Radiographic, computed tomographic, and sonographic correlation in these instances confirms the presence of kidney stones and their uptake of radiotracer. Renal lithiasis is a rare but possible cause of focal technetium-99m MDP uptake in the kidneys.