Appendiceal colic caused by Enterobius vermicularis.

Appendicitis is the most common acute surgical condition of the abdomen. It occurs at all ages but is rare in the very young. l In contrast, appendiceal colic was first reported in 1980.2 It is characterized by recurrent episodes of crampy abdominal pain referred either to the right lower quadrant or to the periumbilical area. There is tenderness to deep palpation over the appendix.3 It is theorized that appendiceal colic is due to an incomplete luminal obstruction of the appendix most often caused by inspissated fecal material.3 Other pathologic findings, however, include torsion of the appendix and narrowed appendiceallumen.4 I report a 13-year-old patient with appendiceal colic whose recurrent right lower quadrant abdominal pain was due to Enterobius vermicularis infestation of the appendix.