Recurrent pneumoperitoneum due to jejunal diverticulosis. With a review of the causes of spontaneous pneumoperitoneum.

In the absence of abdominal operative procedures, symptomless spontaneous pneumoperitoneum is uncommon. The case is described of a patient with jejunal diverticulosis who developed spontaneous pneumoperitoneum on three occasions and brief details are given of six other cases of jejunal diverticulosis with pneumoperitoneum from the literature. Other causes of symptomless pneumoperitoneum include pneumatosis intestinalis, perforation in tabes dorsalis or coma, stercoral ulceration, physiological pneumoperitoneum in women due to exercise in the knee-elbow position, and vaginal douches with a bulb syringe or effervescent fluid.