Sirenomelia/mermaid syndrome, which was first described in 1542 and resembled to mermaid because of its characteristic phenotypic appearance, is a very rare congenital anomaly [1]. This disease characterized by the fusion of the lower extremities at different grades, can be accompanied by multiple system anomalies such as musculoskeletal, gastrointestinal system (GIS), genitourinary system (GUS) and cardiovascular system (CVS). The disease is seen in 1/600,000–1000000 rate [1], [2]. In this article, we aimed to present a premature (26 weeks) patient with sirenomelia with very low birth weight (780 g) who could survive postnatal 8 h and had a normal anus, unlike expected in the anomaly.
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