Computed tomography and skull radiography in the diagnosis of calcified brain tumor.

Among 104 consecutive patients with verified brain tumor, 13 (12.5%) had histologic evidence for calcification. Skull radiographs and CT scans of those cases revealed that in most instances calcification detected by CT was also present on skull radiographs. In cases with a high density lesion present on CT and normal skull radiography, the maximum density on CT was below that which characterizes calcification. The study suggests a complementary role of the two modalities in investigating intracranial calcification.