retrorectal space

retrorectal space

area of loose connective tissue between the rectum anteriorly and the sacrum and upper coccyx posteriorly.
Synonym(s): presacral space
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References in periodicals archive ?
On CT, these lesions are typically well-marginated, thin-walled, uni- or multilocular, nonenhancing lesions in the retrorectal space.
Retrorectal cyst hamartoma (RCH), also commonly known as tailgut cyst, is a rare benign cystic lesion located in the retrorectal space and is believed to derive from persistence of embryologic remnants of the post anal gut (tailgut), which appears at the 3.
In all cases the lesion was located within the retrorectal space, which is defined anteriorly by the rectum, posteriorly by the sacrum, superiorly by the peritoneal reflection, inferiorly by the elevator ani and coccygeus muscle, and laterally by the ureters and iliac vessels.
On rectal examination, the mass was external to the rectum and tethered in the retrorectal space.