“…Since appendectomies performed for a variety of complaints diagnosed as "chronic appendicitis" did not have the expected results, the coneept of chronic inflammatory lesions of the appendix has fallen into disfavor (3,8,10,12). However, recent investigations of large series of patients have re-established the concept of chronic appendieitis which is thought to account for about 6-8 % of all appendix cases (13,17,20,21). However, the preeise disease mechanism has not yet been fully established.…”