Se realizo una variante quirurgica en una paciente con cancer recto-vaginal, con infiltracion del tercio inferior y cara lateral derecha del recto, muy proximo al esfinter del ano. La tecnica consistio, previo diagnostico por biopsia, en realizar excerecis del tumor que comprometio al parapeto derecho y el tercio inferior de vagina, terminando con una colostomia perineal, conservando algunas fibras del esfinter del ano. Se dejo drenaje en ambos lados y se reconstruyo resto de la vagina. Se logro buena continencia rectal del paciente, con buen estado de satisfaccion. No hubo complicaciones y actualmente defeca sin dificultad. Ha tenido seguimiento por consulta de Oncoginecologia del Congreso de Pinar del Rio. La intervencion se llevo a cabo en una hora. Palabras clave: COLOSTOMIA/uso terapeutico, NEOPLASMAS DEL RECTO/cirugia, NEOPLASMAS VAGINALES/cirugia, TECNICAS QUIRURGICAS. ABSTRACT A surgical alternative was performed in a patient suffering from rectovaginal cancer infiltrating the lower third and lateral right aspect of the rectum, so closed to anal sphincter. Operative technique consisted of a previous diagnosis by biopsy, besides, exceresis of the tumor that compromised right pararectum and lower third of vagina, ending in perineal colostomy preserving some fibers of anal sphincter. Drainage was performed in both sides and the rest of the vagina was reconstructed. A good rectal continence and well being were obtained, observing no complications, the patient defecates without difficulties, this case is followed up at III Congreso Hospital in Pinar del Rio. Operative procedures lasted an hour. Key words: COLOSTOMY/therapeutics, RECTAL NEOPLASMS/surgery, VAGINAL NEOPLASMS/surgery, SURGERU OPERATIVE.