a fluid-filled mass that is usually benign. The fluid can be removed for analysis. See needle aspiration.
a slender tube with a lens and a light. It is placed into the bladder through the urethra and the doctor can then view the inside of these organs.
examination of the bladder with an instrument called a cystoscope.
a product of cells of the immune system that may stimulate immunity and cause the regression of some cancers.
the branch of science that deals with the structure and function of cells. Also refers to tests to diagnose cancer and other diseases by examination of cells under the microscope.
the counting and measuring of cells using a machine called a flow cytometer.
toxic to cells; cell-killing.