Metastatic Prostate Cancer to the Left Temporal Bone: A Case Report and Review of the Literature

Table 2

Imaging characteristics of temporal bone lesions.

	CT scan	MRI, T1 weighted imaging	MRI, T2 weighted imaging	MRI, gadolinium
Schwannoma	Intermediate density	Intermediate (cysts may be low, hemorrhage high)	Intermediate (cysts high, hemorrhage variable)	Avid, homogenous enhancement
Mucocele	Expansile, no bony destruction	Variable, typically low	High	No enhancement
Acute petrous apicitis	Air-fluid levels in air cells without bony destruction	Low	High	Mild
Cholesterol granuloma	Expansile	High	Variable, usually high	No enhancement
Cholesteatoma	Bony erosion, remodeling	Intermediate to low intensity	High	No enhancement
Chondrosarcoma	Bony erosions and mineralized matrix	Intermediate to low intensity	High +/− some heterogeneity if calcified matrix	Avid enhancement
Meningioma	Intermediate density	Intermediate (cysts may be low, hemorrhage high)	Intermediate (cysts high, hemorrhage variable)	Avid, homogeneous enhancement