The patient underwent parotidectomy and excision of this mass.
Histology: pleomorphic adenoma
MRI allows precise topographical localization of the mass and diagnosis in the majority of cases.
This case had classic MRI characteristics of pleomorphic adenomas which are:
- well-circumscribed borders
- complete capsule
- lobulated contour
- high T2 signal intensity
- inhomogeneous contrast enhancement
- no lymphadenopathy
- no invasion/infiltration into surrounding structures