### Human:\nwhat is appendicolith. i had a ct done for pain that i have in the lower right abdomen. the finding is appendicolith is present in the distal tip of the appendix. what does all of these means? . do i need surgery? .\n\n### Assistant: a "lith" is a stone. in your case the stone is in the distal (end) of the appendix. this does not mean you will need surgery unless of course you have appendix pain (appendicitis).