megarectum


Also found in: Encyclopedia, Wikipedia.

megarectum

 [meg″ah-rek´tum]
a greatly dilated rectum.

meg·a·rec·tum

(meg'ă-rek'tŭm),
Extreme dilation of the rectum.

megarectum

(1) A faeces-filled rectum in which intrinsic electromechanical activity that would otherwise stimulate the external anal sphincter and puborectalis muscle has ceased. Megarecta are most common in the elderly, and cause constipation.
(2) A term of waning popularity for (toxic) megacolon involving the rectum.

megarectum

A feces-filled rectum in which intrinsic electromechanical activity that would otherwise stimulate the external anal sphincter and puborectalis muscle has ceased, most common in the elderly, resulting in constipation. See Megacolon.

meg·a·rec·tum

(meg'ă-rek'tŭm)
Extreme dilation of the rectum.

megarectum

a greatly dilated rectum.
References in periodicals archive ?
1-5) We report the case of a 25-year-old white male with a history of lifelong constipation and medical noncompliance who presented with peritonitis and was found to have idiopathic megarectum and a perforated stercoral ulcer at the rectosigmoid junction.
Idiopathic megarectum is a rare diagnosis based on a history of severe constipation and a rectal diameter greater than 6.
An algorithm for the elective treatment of idiopathic constipation with megarectum and megacolon has recently been described with recommendations for diagnostic workup and surgical management.
2,13,14) Megarectum and megacolon are idiopathic complications of constipation that develop for reasons that are still unknown.
We report a rare case of idiopathic megarectum with a stercoral ulcer perforation.
Strategy for the surgical management of patients with idiopathic megarectum and megacolon.