Localization of 99mTc-Pyrophosphate in an Ischemic Leg

The localization of bone seeking radiopharmaceuticals in a variety of extraosseous lesions is well recognized. Specific accumulation in ischemic or infarcted tissue of the heart, brain and intestine has been reported. Two cases which demonstrate localization of 99mTc-pyrophosphate in the soft tissues and bone in an arterial thrombosed leg are reported.