Chronic Ectopic Pregnancy Masquerading as Ovarian Cystadenoma: A Case Report

The term ‘chronic ectopic pregnancy’ refers to a type of tubal pregnancy in which a pelvic mass frequently develops as a result of repeated small ectopic ruptures or abortions, rather than a single episode of bleeding. Chronic ectopic pregnancy can often present with vague symptoms, making it susceptible to misdiagnosis and delaying treatment. In this case, a 27-year-old woman with para 2 and 2 live births presented with complaints of on-and-off abdominal pain in the right inguinal region for the past two months. During the clinical examination, a substantial, firm mass measuring 6×6 cm was palpated in the right adnexal region, not associated with any adnexal tenderness. Transabdominal sonography suggested an empty uterus with a solid cystic mass, round/ oval in shape, located in the right adnexal region measuring approximately 6.9×6.4 cm. The ultrasound findings in these patients can either show an amorphous, avascular mass or a highly vascular complex. The diagnosis can be mistaken for endometriosis, acute pelvic inflammatory illness, vascular tumours, pelvic abscess, or, in this instance, a cystadenoma. In most cases, radiologic findings are essential in the differential diagnosis, but it is mostly confirmed through surgery, as in this case. A laparotomy was performed, which revealed a chronic ectopic pregnancy, and a salpingo-oophrectomy was performed.