"T1: loss of signal"
"T1 C+ (Gd): contrast enhancement"
Expected headings
"Staging"
"T4: tumour with the erosion of the cochlea, petrous apex, medial wall of the middle ear, carotid canal, jugular foramen or dura, or with extensive (>0.5 cm) soft-tissue involvement 11,12"
"High-resolution computed tomography (HRCT) of the petrous temporal bone (axial temporal bone and neck, non-contrast and with contrast) is used for assessment of bony canal erosion in the external auditory canal, extension into the middle ear, the mastoid part, and surrounding soft tissue, as well as the extension of the tumour into the dura, cochlea, and petrous apex 7,8."