Abstract
Four children underwent appendectomy under the diagnosis of appendicitis at our hospital. At operation a moderate amount of clear ascites was found in each case. In 3 of the 4 patients, there were pine worms in the appendix. Histological examination revealed moderate inflammation of the appendix and showed a worm in the appendices in all 4 patients. Enterobius vermicularis is known to parasite in the human terminal ileum, cecum and appendix. The female worm migrates to the anal and perineal region to lay off eggs in the night, which causes intolerable itching, sleeplessness and irritability. Sometimes parasitic lesion affects the appendix and gives rise to acute appendicitis. Inflammatory reaction of the appendix caused by Enterobius vermicularis characteristically leads to a mild to moderate amount of clear ascites. Histological examination usually showed mild degree of inflammation of mucosa in appendix.
