Evaluate for progression of leptomeningeal carcinomatosis from breast cancer treated with WBRT. The abnormal leptomeningeal enhancement has markedly diminished and there is minimal residual T2-FLAIR hyperintensity in the left parietal sulci. There is no evidence of intraparenchymal abnormal enhancement. There is unchanged nonspecific patchy T2 hyperintensity in the periventricular white matter, particularly in the parietal regions. There is no evidence of intracranial hemorrhage, mass, or acute infarct. The ventricles and basal cisterns are unchanged 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 unchanged.
1. Interval improvement in the leptomeningeal carcinomatosis.2. No evidence of intraparenchymal metastases.