T1 coronals pre gad T1 coronals post gad T1 axial post gad w/ fat sat

Diagnosis: Breast cancer metastases

The most common malignant tumor of the skull base is metastasis, usually lung, breast or prostate. Skull base metastases appear as destructive masses on CT while on MR they are usually isointense to muscle on T1, bright on T2 and enhance.

If the skull base lesion was the only one present, the differential may be expanded to include glomus tumor. This patient had a remote history of breast carcinoma. The fatty infiltration of the right side of the tongue is compatible with tumor invasion of the right hypoglossal canal with injury to CN 12. Related Cases

Adenoid cystic carcinoma Glomus vagale Breast cancer mets