Book excerpt: Maternal-Fetal and Neonatal Endocrinology: Physiology, Pathophysiology, and Clinical Management systematically examines the normal and abnormal endocrinology of the pregnant and lactating female and of the fetus and neonate. This reference volume expands coverage of specific disorders and diseases beyond the current endocrinology content on the market, which in most cases has a paragraph or no mention at all about pregnancy or aspects of fetal/neonatal development. - Formalized source of maternal/fetal endocrine physiology and pathophysiology - Key reference for fellows and residents for rarer endocrine pathologies - Integrated presentation of new molecular and genetic causes of endocrine disorders - Bridges the experience/knowledge gap of endocrinopathies rarely encountered in pregnancy