Prenatal Sonography-Based Detection of Thoraco-Omphalopagus Conjoined Twins and Its Role as Primary Health Care Tool.

Conjoined twins are an extremely uncommon type of pregnancy that carries high morbidity and mortality. Identical twins united in utero are known as conjoined twins. Incidence varies from 1 in 50 000 to 1 in 100 000 live births. The prognosis is determined by the vitality of the shared organs, the severity of associated congenital anomalies, and the location and extent of fusion of the shared organs. Due to the elevated level of risk associated with this situation, it is crucial to prioritize early diagnosis, management, and delivery. Conjoined twins can be classified into different types based on the location of anatomical fusion. One of the most prevalent types is thoracopagus. Thoraco-omphalopagus comprises 75% of the conjoined twins. We are presenting a case of prenatal detection of thoraco-omphalopagus conjoined twins using two-dimensional ultrasound at 14 weeks of pregnancy, followed by posttermination follow-up.