we examined the cytosolic estrogen receptor ( er ) level in tumor tissue from 77 patients : 36 meningiomas , 20 gliomas ( 12 glioblastomas , 2 cerebellar astrocytomas , 2 ependymomas , and 4 medulloblastomas ) , 8 neurinomas , 7 pituitary adenomas ( 2 prolactin-producing adenomas , 1 growth hormone-producing adenoma , and 4 nonfunctioning adenomas ) , and 6 metastatic brain tumors ( 1 from breast cancer , 4 from lung cancers , and 1 from colon cancer ) .
C0017638
gliomas
C0014474
ependymomas