[A primary or metastatic malignant tumor involving the leptomeninges. ( NCI )]
UMLS (NCI) C1334596Malignant Leptomeningeal Neoplasm
Malignant Leptomeningeal Tumor
Malignant Neoplasm of Leptomeninges
Malignant Neoplasm of the Leptomeninges
Malignant Tumor of Leptomeninges
Malignant Tumor of the Leptomeninges