Nuclear Medicine Dictionary Nuclear Medicine : Nomenclature Guide
  • Calcification: Abnormal hardening or stiffening of a body part.
  • Cancer: An abnormal growth that can invade nearby structures and spread to other parts of the body and may be a threat to life.
  • Catheter: A thin tube that is inserted through the urethra into the bladder to allow urine to drain or for performance of a procedure or test, such as insertion of a substance during a bladder X-ray.
  • Catheterization: Insertion of a narrow tube through the urethra or through the front of the abdominal wall into the bladder to allow urine drainage.
  • Colon: Large intestine.
  • Congenital: Present at birth.
  • Continence: The ability to control the timing of urination or a bowel movement.
  • CT scan: Also known as computerized tomography, computerized axial tomography or CAT scan. A diagnostic imaging procedure that uses a combination of X-rays and computer technology to produce cross-sectional images of the body. Shows detailed images of any part of the body.
  • Cyst: An abnormal sac containing gas, fluid or a semisolid material. Cysts may form in kidneys or other parts of the body.
  • Cystoscopy: Also known as cystourethroscopy. Examination with a narrow, tube-like instrument passed through the urethra to look inside the bladder.
  • Cystourethrogram: Also called a voiding cystogram. A specific X-ray that examines the urinary tract. A catheter is placed in the urethra and the bladder is filled with a liquid dye. X-ray images are taken as the bladder fills and empties. The X-rays will show if there is any reverse flow of urine into the ureters and kidneys.
  • Cytology: The examination of cells obtained from the body tissue or fluids, especially to establish if they are cancerous.
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