Treated small cell lung cancer with worsening weakness and pain. Possible brain metastasis. History of cavernoma. No evidence of acute ischemic or hemorrhagic lesion.There is about 9.5 mm sized left quadrigeminal plate cavernoma demonstrated, comparing to prior scan, the size, MR characteristics and enhancement patterns do not show any significant interval change.The ventricles, sulci and cisterns are symmetric and unremarkable. The gray-white matter differentiation is normal. There is no intra or extra-axial fluid collection/hemorrhage, restricted diffusion/acute ischemia, or abnormal contrast enhancement may suggest metastatic lesion. The midline structures and cranial-cervical junction are normal. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
1.No evidence of acute ischemic or hemorrhagic lesion.2. No evidence of metastasis.3. No interval change of known left quadrigeminal plate cavernoma since prior study.