Unveiling the Enigmatic: A Rare Presentation of Posterior Reversible Encephalopathy Syndrome in a Primigravida With Twin Pregnancy.

Posterior reversible encephalopathy syndrome (PRES) is a distinctive and challenging neurological condition characterized by a constellation of symptoms, including altered mental status, seizures, headaches, and visual disturbances. It is often associated with abrupt increases in blood pressure or other underlying precipitating factors. While PRES has been recognized for its diverse clinical presentations, it remains an infrequent diagnosis, and its occurrence during pregnancy, especially in primigravida with multiple gestations, is rare. In this context, it is imperative to explore and explicitly mention the underlying factors contributing to PRES in the case, which may include factors such as hypertensive disorders of pregnancy, immunosuppressive therapy, and renal dysfunction. Addressing these factors is essential for a comprehensive understanding of PRES in the context of pregnancy and its implications for clinical management. In this case report, we present an unusual and captivating clinical scenario involving a 19-year-old primigravida admitted to a tertiary care hospital with a twin pregnancy and presenting with complaints of severe back pain and a history of amenorrhea for eight months. The patient's journey unfolds with an emergency cesarean section, resulting in the birth of two healthy female infants and the sudden onset of seizures on the second day postoperatively. This case provides an intriguing glimpse into the complexities of diagnosing and managing PRES, particularly within the unique context of pregnancy. We discuss the clinical course, diagnostic evaluation, and the subsequent management of this challenging case, contributing to the growing body of knowledge on PRES in a pregnancy-related setting.