[Left-sided appendicitis due to intestinal malrotation].

Left-sided appendicitis due to malrotation is a rare condition with an atypical presentation. We report a history of a 31-year-old man who had four days of right-sided abdominal pain, moving across lower abdomen and tenderness in both right and left side on examination. A computed tomography revealed intestinal malrotation and inflammation of the appendix, which was placed from a caecum in left fossa to across the abdominal midline. Appendix was removed and the patient recovered uneventfully. Presentations, diagnostic procedures and operation techniques are discussed.