Serous cystadenoma of the broad ligament mimicking an ovarian cyst: a diagnostic challenge

Serous cystadenomas are epithelial tumours which are commonly seen in ovaries. Its occurrence in broad ligaments is extremely rare. The symptoms, signs and ultrasonic appearance of a broad ligament lesions may be difficult to distinguish from an ovarian tumour. So, it is important to keep a differential diagnosis of an extra ovarian lesion in cases of an adnexal mass.