Metastatic tonsil cancer with brain lesion on CT. MRI necessary for radiosurgery treatment planning. Brain: There is a heterogeneously enhancing mass in the left inferior temporal gyrus that measures up to 12 mm with surrounding vasogenic edema. There is no evidence of intracranial hemorrhage or acute infarct. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.Neck: There are stable post-treatment findings in the neck. There is no evidence of measurable mass lesions or significant cervical lymphadenopathy based on size criteria. The thyroid and major salivary glands are grossly unremarkable. The right internal jugular vein is absent. There is multilevel degenerative spondylosis with moderate spinal canal stenosis at C3 through C6. There is a partially-imaged left apical pulmonary consolidation.
1. A mass in the left inferior temporal gyrus that measures up to 12 mm likely represents metastatic disease.2. Post-treatment findings in the neck without evidence of measurable mass lesions or significant cervical lymphadenopathy.3. Multilevel degenerative spondylosis with moderate spinal canal stenosis at C3 through C6.