Imaging at Follow-up
MRI of the brain and skull base or temporal bones without and with
contrast is recommended during on therapy follow up of a skull base or
temporal bone tumor. (GRADE C, SOR 1.00, very strong recommendation) CT
of the head without contrast for the skull base or CT temporal bone
without contrast may provide complementary information at follow up,
especially as it relates to bony treatment response. CT, however, does
not serve as a primary method of follow up. Contrast-enhanced CT is not
recommended for such follow up unless MRI is contraindicated.
Full body PET CT is recommended during on therapy follow up of a
temporal bone or skull base sarcoma with metastatic disease at
presentation. (GRADE C, SOR 1.00, very strong recommendation) Standard
chest CT is typically concomitantly performed.