pericaecal
/ˌpɛrɪˈsɛkəl/Definitions
1. adjective
relating to the appendix or peritoneal cavity
“The pericaecal region of the abdomen was examined by the surgeon.”
2. noun
a part or organ relating to the peritoneal cavity or the appendix
“The pericaecal area of the patient’s abdomen showed signs of inflammation.”