TY - CHAP M1 - Book, Section TI - Metastatic Brain Tumors A1 - Eichler, April F. A2 - Chabner, Bruce A. A2 - Longo, Dan L. PY - 2016 T2 - Harrison's Manual of Oncology, 2e AB - Brain metastasis is a common complication of cancer. Recent population-based data suggest that up to 20% of adults with cancer will develop symptomatic brain metastases during life (1). Autopsy studies indicate that another 25%–30% of patients with disseminated cancer have asymptomatic brain metastases at the time of death. The incidence of brain metastasis varies by primary cancer type, being highest for lung (20%) followed by melanoma (7%), renal (6.5%), breast (5%), and colorectal (1.8%). Prostate, gynecologic, head and neck, and non-melanomatous skin cancers involve the brain parenchyma infrequently. The prevalence of brain metastases has increased in the past three decades. Contributing factors may include more sensitive imaging techniques (gadolinium enhanced MRI), lengthened survival due to more effective systemic therapies, and poor central nervous system (CNS) penetration of many chemotherapeutic and antibody-based agents. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/18 UR - hemonc.mhmedical.com/content.aspx?aid=1127649918 ER -