Omphalopagus Conjoined Twins: Case Report

Abstract

Conjoined twins are a rare congenital anomaly caused by incomplete division of a monozygotic embryo. Ompha-lopagus twins, joined at the anterior abdominal wall, represent 10–18% of cases and are relatively compatible with postnatal survival. We report two serial cases of female omphalopagus twins diagnosed after birth. The first case involved full-term twins with partial hepatic fusion and shared upper abdominal viscera. The second case involved preterm twins with minimal soft tissue fusion and largely separate organ systems, except for a small secundum atrial septal defect in one twin. Antenatal ultrasonography in both cases failed to establish a definitive diagnosis. Postnatal evaluation using contrast-enhanced computed tomography, barium studies, and echocardiography provided de-tailed delineation of organ sharing. These findings guided neonatal intensive care and surgical planning. The cases emphasize the importance of thorough postnatal imaging and multidisciplinary management to assess operability and optimize outcomes, particularly in settings with limited antenatal diagnostic resources.

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