title: Benign chondroma of the petrous apex.
abstract: The roentgen findings of a rare benign chondroma of the petrous apex are presented. This patient's clinical history made it imperative that we rule out a metastatic breast lesion. A transcochlear approach verified the benign nature of this lesion.
mesh_terms: D002812:Chondroma / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010579:Petrous Bone; D012888:Skull Neoplasms / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed