A case of asymptomatic intussusception of the appendix in a patient was associated with endometriosis. This abnormality should be remembered in all cases of right lower quadrant pain, in the differential diagnosis of roentgenologic filling defects of the cecum, and as a precipitating cause of compound intussusception.
Schmidt FR, McCarthy JD. Intussusception of the Appendix With Endometriosis Presenting as a Cecal Tumor. Arch Surg. 1971;103(4):515-517. doi:10.1001/archsurg.1971.01350100113022