General: Brain tumors: Originate from neural elements inside the brain Stem from metastatic cancer to brain. Most brain cancers are metastatic. Many types of brain cancer: Most common: Gliomas, Pituitary adenomas, Meningiomas, and Acoustic neuromas. Can be supratentorial (above the tentorium) or infratentorial (below...

General Common and recurrent type of cancer Mainly affects the transitional (urothelial cells) in the lining of the bladder. Accounts for 90% of all bladder cancers. Transitional cell cancer (TCC) can originate anywhere in the renal pelvis, urethra, bladder, or ureter but is mainly...