Anorectal junction | definition of anorectal junction by Medical dictionary
a·no·rec·tal junc·tion [TA]
transition from rectum to anal canal; corresponds to the perineal flexure, or the level at which the gut perforates the pelvic diaphragm; here the rectal ampulla narrows abruptly into a narrow slip.
anorectal junction (1) Anorectal line; linea anorectalis [NA6, NH3]; dentate line, pectinate line.
(2) Anocutaneous line; linea anocutanea [NH3].
References in periodicals archive
Repeat colonoscopy revealed a circumferential non-pigmented poorly-differentiated low rectal tumour at the anorectal junction
It is unusual to find systemic failure in the absence of liver metastases, although the portosystemic shunting that exists at the anorectal junction
does permit hematogenous spread outside the portal circulation to the internal iliac vessels and the cava.
5-cm thickening of the rectum and sigmoid colon from the anorectal junction
to the mid-sigmoid (Fig.