Appendiceal endosalpingiosis: a rare case with potential implications for gynecological malignancy

Appendiceal endosalpingiosis is an exceedingly rare histopathologic finding with uncertain clinical significance and unknown implications for management. Most often, endosalpingiosis occurs within ovary, fallopian tube, omentum, and uterus. Previous literature has elucidated an association between endosalpingiosis and pelvic malignancies, such as ovarian and uterine cancers. Here, we describe a case of appendiceal endosalpingiosis mimicking acute appendicitis. The clinical significance of this condition as well as the potential for association with gynecologic malignancy requires further investigation to be elucidated.