Computerized tomography of brain tumors of the rostral and middle fossas in the dog.

Computerized tomography (CT) was used to assess spontaneously occurring brain tumors of the rostral and middle fossas in the dog. Six dogs were used to illustrate the efficacy of CT as a noninvasive diagnostic procedure. Tumors were characterized on CT scans by density changes, presence of edema or calcification, displacement of normal anatomic landmarks, and contrast enhancement after injection of an iodinated contrast material. In terms of CT appearance, there were a number of morphologic similarities between human and canine brain tumors.