Antenatal Spontaneous Renal Forniceal Rupture Presenting as an Acute Abdomen

Background. Renal forniceal rupture is a lesser-known cause of acute abdomen in pregnancy. The ureteral compression by the gravid uterus places pregnant women at a higher risk. Sequelae in pregnancy could include intractable pain, acute kidney injury, and preterm birth. Case. A 22-year-old primigravida with no prior medical history presented with an acute abdomen in her second trimester. The diagnosis of renal forniceal rupture was made by a radiologist using MRI. A percutaneous nephrostomy catheter was placed, and the patient's pain was relieved. She subsequently delivered at term. Conclusion. Upon presentation of an acute abdomen in pregnancy, providers may not include renal forniceal rupture in their differential as readily as obstetric or gynecologic causes, resulting in delayed diagnosis, unnecessary invasive interventions, and potentially adverse maternal and neonatal outcomes. Increasing provider awareness could result in improved outcomes.

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