[Three new cases of presacral tumor (author's transl)]

Presacral tumors have miscellaneous histologic structures: some of them, among the most uncommon, are malignant tumors and lay it down that the extirpation must be the most complete as possible. Often they are uncovered when they compress adjoining organs (rectum, bladder, ureters, sacral plexus) and they appear voluminous, encrusted in the pelvic excavation, taking a rich vascularisation from surroundings. This adhesion involves a laborious extirpation, often hemorraegic, but needful even in benignant tumors. On this understanding and with the help of a good approach, pelvic organs can be decompressed with restricted risks of recurrence.