Paired structures in the embryo that represent the final stage of development of the caudal end of the external genitals before sexual differentiation. In both males and females the two swellings merge: in the female, they become the posterior labial commissure; In the male, they become the scrotum [ http://en.wikipedia.org/wiki/Labioscrotal_swelling ]

Synonyms: labioscrotal swelling

This is just here as a test because I lose it