Villous adenoma with severe fluid imbalance.
D000236:Adenoma / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000473:pathology* / Q000601:surgery; D012811:Sigmoid Neoplasms / Q000473:pathology* / Q000601:surgery; D014882:Water-Electrolyte Balance