Large soft tissue mass involving the proximal aspect of the masseter muscle, medial aspect of the lateral pterygoid muscle, temporalis muscle as well as destruction of the left temporal bone. Soft tissue opacification in the mastoid air cells of the mandibular fossa. Associated intracranial mass with small cystic focus suggestive of necrosis.
Small reactive focal bone spur and degenerative change in the anterior aspect of the left mandibular condyle.
Internal auditory canals are both symmetrical. Right temporomandibular joint demonstrates normal alignment and joint space. No definite enlarged nodes in the proximal aspect of the neck.
Conclusion:
Destructive lesion of the left temporal bone and large soft tissue mass with involvement of the infratemporal fossa and middle cranial fossa. Mild reactive bony spur at the anterior aspect of the left mandibular condyle.