Radionuclide bone imaging findings in recurrent calvarial infarction in sickle cell disease.

A patient with sickle cell disease developed bi-parietal calvarial infarctions, and subsequently developed bi-frontal calvarial infarctions. The findings on [99mTc]MDP bone imaging showed decreased activity in the parietal and frontal regions during the phase of acute infarction and increased activity in the parietal region during the later healing phase. Thus the findings on radionuclide bone imaging in cortical infarcts will depend upon the stage of the condition.