anal cushions


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a·nal cushions

vascular prominences formed by clusters of normally sacculated veins of the superior rectal venous plexus, fed by arteriovenous anastomoses that cause their engorgement; are usually found to lie laterally on the left and antero- and posterolaterally on the right side of the anal canal.
References in periodicals archive ?
The current concept of genesis of primary haemorrhoids is that the mucosa and sub mucosa at these three sites, 3, 7, 11 0' clock are occupied by longitudinal anal cushions which are present from infancy.