(from the article `appendix`) ...into the structure. If anything blocks the opening of the appendix or prevents it from expelling its contents into the cecum, appendicitis may ... Found on http://www.britannica.com/eb/a-z/f/13
Fecalith: A hard stony mass of feces. A fecalith can obstruct the appendix, leading to appendicitis. Fecaliths also can obstruct diverticuli. Called also a coprolith and stercolith. From fecal + -lith for stone. Found on http://www.medterms.com/script/main/art.asp?articlekey=23494