Giant villous adenoma of the rectum with severe electrolyte imbalance.
D000236:Adenoma / Q000150:complications*; D000368:Aged; D005260:Female; D006801:Humans; D007008:Hypokalemia / Q000209:etiology*; D012004:Rectal Neoplasms / Q000150:complications*; D014882:Water-Electrolyte Balance