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Sirenomelia

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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Sirenomelia is a congenital defect, probably vascular in origin, the major feature of which is the development of a single lower limb and a variety of associated defects.

Note that in the past it has been felt to be part of a spectrum including the caudal regression sequence and sacral agenesis; this is now felt not to be the case.


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