Inflammation of the cecum, the pouch-like beginning of the large intestine.
From Latin caecum (blind, or the blind gut) combined with -itis (inflammation suffix from Greek). The cecum was called 'blind' because it has a closed end.
Your cecum is literally called the 'blind gut' in medical terminology because it's a dead-end pouch—and when doctors see '-itis' at the end of any word, they immediately know someone's body part is inflamed and angry.
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