Sheeza Basharatover 1 year ago

Sirenomelia

Sirenomelia is a rare and generally fatal congenital syndrome. It is characterized by partial or complete fusion of the lower limbs, sacrococcygeal agenesis, GU anomalies, and anorectal atresia. It is very rare, with an incidence of about 0.8/100,000 births. This 21 week fetus has a single fused lower limb (classification VI- a single fused femur and a single fused tibia, with no foot). There was only a single umbilical artery. It did not have any external or internal genitalia, no kidneys, an absent sacrum, coccyx, and os coxae, and had an imperforate anus. The thoracic cavity and upper extremities were unremarkable.