paraperitoneal

par·a·per·i·to·ne·al

(par'ă-per'i-tō-nē'ăl), Outside of or adjacent to the peritoneum.

paraperitoneal

(păr″ă-pĕr″ĭ-tō-nē′ăl) [″ + peritonaion, peritoneum] Near the peritoneum.