Axial noncontrast T1- and T2-weighted (fat-suppressed) images demonstrate
a lobulated, multiseptated mass with hypointense T1 and hyperintense T2
signal anterior to and abutting the left masseter muscle.
Postcontrast, fat suppressed T1-weighted images demonstrate enhancement
of the mass, with extension medially into the buccal and masticator spaces.
Contrast CT (lower right) demonstrates round, well-defined hyperdensities
(phleboliths) within the mass anterior to the left masseter muscle.
Key words: mri tumor neoplasia vascular