Abdominopelvic cysts are reported as a relatively frequent ultrasound finding during pregnancy. Cysts diagnosed in the first trimester are usually rare, most cysts are detected in the second- and third-trimester. First- and second-trimester cysts are more likely to be associated with other abnormalities with a higher probability of an adverse perinatal outcome, such as fetal or neonatal loss, neonatal complications, and the need for surgical treatment. Cysts recognized in the third trimester are usually isolated lesions, generally resulting in better aftermath.

Antenatal ultrasound is highly sensitive in detecting lesions, however it often has difficulties differentiating between various abdominal cysts. With the appearance of ultrafast sequences, MRI may enhance the diagnostic accuracy of ultrasound and help in therapeutic decision-making by aiding lesion characterization of abdominopelvic cysts.