Incidental appendectomy? Microscopy tells another story: A retrospective cohort study in patients presenting acute right lower quadrant abdominal pain.

BACKGROUND

Optimal management of macroscopically normal appendix encountered during laparoscopy for acute abdominal pain is still unclear.

METHODS

164 acute abdominal pain cases in which laparoscopy showed a normal appendix were reviewed. No other intra-peritoneal acute disease was present in 50 patients (Group 1) whereas a miscellanea of intra-peritoneal conditions was identified in the other 114 (Group 2). All the patients underwent appendectomy with specimen examination.

RESULTS

Following incidental appendectomy significant microscopical changes were seen in 125 specimens (76%). Among these, inflammation was found in 122 and neuroendocrine tumors in 3. Appendices harbored pathological changes in n = 45 patients (90%) of Group 1 and in n = 34 patients (70%) of Group 2 patients (p < 0.05). Morbidity for incidental appendectomy was 2%.

CONCLUSION

This study supports an appendectomy in patients who are undergoing laparoscopy for acute right lower quadrant abdominal pain even when the appendix appears normal on visual inspection.