ABSTRACT
DEVELOPMENTAL ARREST IN THE MALE Some external genital defects represent a failure of ven tral migration of mesoderm, from the caudal primitive streak to the perineum and anterior body wall (see Chapter 52).
DEVELOPMENTAL ARREST IN THE MALE Some external genital defects represent a failure of ven tral migration of mesoderm, from the caudal primitive streak to the perineum and anterior body wall (see Chapter 52).