Ambiguous genitalia and intersex.

Area of Science:

• Pediatric Endocrinology
• Medical Genetics
• Reproductive Biology

Background:

• Intersex disorders are rare congenital malformations, with congenital adrenal hyperplasia (CAH) accounting for over 80%.
• Accurate diagnosis at birth is challenging, necessitating a deep understanding of embryology and anatomy.
• The birth of an intersex infant is a medical emergency requiring immediate transfer to a specialized center.

Purpose of the Study:

• To review the diagnostic and management challenges of intersex disorders.
• To discuss current understanding of embryology, anatomy, and hormonal influences in intersex conditions.
• To evaluate evolving treatment paradigms, including surgical and sex assignment considerations.

Main Methods:

• Review of embryological and anatomical factors in intersex development.
• Analysis of clinical manifestations, including virilization in CAH.
• Discussion of surgical correction outcomes and current management controversies.

Main Results:

• Palpable gonads in infants often indicate a Y chromosome.
• Male pseudohermaphroditism involves lack of Mullerian structures and inadequate virilization due to hormonal imbalances.
• Surgical techniques offer potential for satisfactory cosmetic and functional results.

Conclusions:

• Current data suggest a re-evaluation of historical sex reassignment practices.
• Further research is needed to establish individualized guidelines for intersex patient management.
• Informed parental decision-making, supported by current data, is crucial.