[Extrarenal hyperazotemia caused by hypersecreting rectal villous tumor; report of two cases].
D006801:Humans; D009369:Neoplasms; D009584:Nitrogen / Q000097:blood*; D012004:Rectal Neoplasms; D012007:Rectum
D009584:Nitrogen
NITROGEN/in blood; RECTUM/neoplasms
Hiperazohemia extrarrenal por tumor velloso rectal hipersecretante; comunicación de dos observaciones.