paraproctium

par·a·proc·ti·um

, pl.

par·a·proc·ti·a

(par'ă-prok'shē-um, -tē-ŭm; -ă),
The cellular tissue surrounding the rectum.
[para- + G. prōktos, anus]

paraproctium

(păr″ă-prŏk′shē-ŭm) [″ + proktos, anus]
The connective tissue around the anus and rectum.