A 14-year-old girl is brought to the physician by her mother for not yet having a menstrual period. Physical examination shows a vagina that ends in a blind pouch. Pubic and axillary hair are coarse (Tanner stage 4). Which of the following is the most likely diagnosis?
5α-reductase deficiency
Androgen insensitivity syndrome
Müllerian agenesis
SRY gene translocation
Swyer syndrome
