[A case of complete androgen insensitivity syndrome with special family history and its genetic analysis].

To report a case of complete androgen insensitivity syndrome with a special family history and its genetic analysis. We studied the medical history, diagnosis and treatment of a case of complete androgen insensitivity syndrome, collected blood samples from the patient and his mother for whole exome sequencing, and analyzed the genetic etiology. The patient presented with "primary amenorrhea" and diagnosed with male pseudohermaphroditism, with the karyotype as 46, XY. Surgery confirmed undescended testes in the abdominal cavity. The androgen level was higher than normal. Whole exome sequencing of the patient and his mother found c.2678C>T (p.P893L) but no other abnormalities, which was considered as a suspected pathogenic mutation of complete androgen insensitivity syndrome. The patient had a "sister" with a similar medical history. c.2678C>T (p.P893L) is a suspected pathogenic mutation of complete androgen insensitivity syndrome, which usually cannot be detected until puberty, making it easy to delay the diagnosis.