Secondary malignant neoplasm of brain and spinal cord [198.3], Reason for Study: ^Reason: hx of metastatic SCLC to brain s/p WBRT, eval L frontal lesion History: none Previously seen right middle frontal gyrus enhancing nodule with surrounding edema appears to be significantly reduced in size and the degree of enhancement as well as the extent of surrounding edema comparing to prior scan.There is no other enhancing lesion seen on this scan.There is no evidence of acute ischemic or hemorrhagic lesion on this scan. The ventricles, sulci and cisterns are symmetric and unremarkable. 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. Interval significant reduction of the size of right middle frontal gyrus enhancing nodule as well as the extent of surrounding edema since prior scan.2. No evidence of new ischemic or hemorrhagic lesion.3. No evidence of new enhancing lesion.