Antenatal diagnosis of thoracopagus and thoraco-omphalopagus conjoined twins: case series

Background Conjoined twin pregnancy is a rare variety, which occurs due to incomplete separation of the embryonic plate after 13 days. Each type of this entity is linked to distinct levels of organ sharing, structural abnormalities, complications, and difficulties concerning the potential for separation. So a comprehensive multidisciplinary prenatal assessment of conjoined twins is crucial for providing accurate parental counseling, effectively managing the pregnancy, and formulating an appropriate delivery strategy. The purpose of our study was to early diagnosis of conjoined twins using ultrasound, describing the various types of conjoined twins and the role of recent advances like 3D ultra-sound in aiding their management. Case presentation Here, we are describing the case series of four conjoined twins, which were diagnosed antenatally by using ultrasound between the period of January 2019 and December 2019. Four cases of conjoined twins (two thoracopagus and two thoraco-omphalopagus) were accurately diagnosed on antenatal ultrasound. After detailed counseling of the parents regarding the risks and benefits of this complicated pregnancy and obtaining written consent, all four cases were terminated. Ultrasound plays a vital role in the early diagnosis and management of conjoined twins. Also, 3D ultrasound and MRI help in better characterization of fused body parts and connection between vital organs, thus it aids in the management. Conclusions It is important to detect these cases early as termination of pregnancy is less risky in the early stages as compared to the late stages for proper management.