... > disease > tumor > malignant tumor > cancer > brain cancer > malignant hemangiopericytoma

... > disease > nervous system diseases > central nervous system diseases > cerebral disorder > brain cancer > malignant hemangiopericytoma

disease > tumor > hemangiopericytoma > malignant hemangiopericytoma

disease > cardiovascular disease > vascular disease > hemangiopericytoma > malignant hemangiopericytoma