A very rare complex congenital malformation syndrome, in which the legs are fused together (the name comes from mythical mermaids — sirens). Always accompanied by urogenital malformations with oligo/anhydramnion.
Sirenomelia is always lethal. Congenital renal malformations with oligo/anhydramnion inevitably lead to pulmonary hypoplasia (Potter's sequence).
Sirenomelia:
Sirenomelia, Macro, autopsy (73336)
Sirenomelia, Macro, autopsy (73337)
Sirenomelia:
Sirenomelia, Macro, autopsy (74566)
Sirenomelia, Macro, autopsy (74567)
Sirenomelia, Macro, autopsy (74568)
Sirenomelia, Macro, autopsy (74569)
Sirenomelia, Macro, autopsy (74570)
Sirenomelia, Macro, autopsy (74571)
Sirenomelia, Macro, autopsy (74572)
23-week male fetus, anhydramnion.
Single rudimental lower limb, agenesis of the external genitalia, imperforate anus:
Sirenomelia, Macro, autopsy (72534)
Sirenomelia, Macro, autopsy (72535)
Rectal atresia, bladder agenesis:
Sirenomelia, Macro, autopsy (72536)
Bilateral renal agenesis:
Sirenomelia, Macro, autopsy (72538)
Agenesis of the right lung:
Sirenomelia, Macro, autopsy (72537)