Clinical question: Patient with history of lung cancer with metastases to brain status post RT. Signs and symptoms: Doing well but no new disease evaluation compared to prior scans. Pre-and post-enhanced head CT:Examination demonstrates further decrease in the size of a single small metastatic focus in the dorsal aspect of the right cerebellum. It measures approximately 4 x 6-mm in size compared to prior measurements of 11 x 11.There is no detectable surrounding vasogenic edema.Unremarkable pre-and post enhanced head CT otherwise and in particular no evidence of any new additional metastatic lesions of brain parenchymal or leptomeninges.Calvarium is intact.Limited images through the orbits are unremarkable.Paranasal sinuses and mastoid air cells are unremarkable.
Further decrease in the size of a single right posterior cerebellar metastatic focus to 4 x 6-mm in size compared to prior measurements of 11 x 11. No evidence of any new findings.