Calcified brain metastases: demonstration by computed tomography.

Seven patients are reported with calcification in brain metastases. The calcification was punctate, curvilinear, or amorphous and sometimes closely simulated a hemorrhage. The attenuation values were 50-105 Hounsfield units before administration of contrast material. Although various degrees of contrast enhancement were noted in the noncalcified parts of the metastases, slight or no enhancement was seen in the regions of calcification . The primary tumors were: colon (two cases), lung (two cases) , breast (one case), esophagus (one case), and both breast and lung (one case).