Cluster 42: cns metastases subjects symptoms treated nervous eligible central neurologically stable Cluster 92: cns metastases brain nervous central stable patients treated weeks disease Cluster 186: metastases carcinomatous brain meningitis cns nervous central treated participate previously Cluster 395: cns metastasis metastases nervous asymptomatic central treated steroids imaging previously Cluster 580: carcinomatous meningitis nervous metastases central cns known active untreated clinically Cluster 960: nervous central metastases cns known brain active history treated presence Cluster 1635: meningeal involvement nervous central carcinomatosis metastases signs cns brain clinical Cluster 1667: carcinomatosis leptomeningeal history cns metastases nervous lymphangitic brain central metastasis Cluster 2068: metastasis nervous central cns symptomatic known malignancy untreated history active Cluster 2150: tumors primary brain cns nervous central patients metastases solid seizures Cluster 2176: neurologically stable metastases brain treated cns nervous central steroids corticosteroids Cluster 2390: lesions inactive considered cns asymptomatic active treated nervous central small