Complete androgen insensitivity syndrome – rare case of malignancy of dysgenetic gonads

Abstract

Objective: A case report of a young patient with primary amenorrhea who was diagnosed with agenesis of uterus and genetically confirmed complete androgen insensitivity syndrome with already developed malignancy of dysgenetic gonads.

Design: Case report

Setting: Department of Obstetrics and Gynecology, Hospital Vyškov

Case report: The 17-year-old patient visited a gynecological clinic for a primary amenorrhea. Both ultrasound and vaginal examination revealed suspicion of uterine agenesis, which was subsequently verified during diagnostic laparoscopy. Genetic testing showed karyotype 46, XY, and a rare diagnosis – complete androgen insensitivity syndrome. A secondary finding from a left gonadal biopsy was a Sertoli-Leydig cell tumor. The patient underwent bilateral gonadectomy and was given estrogen replacement therapy. She is now regularly examined by a pediatric oncologist.

Conlusion: Complete androgen insensitivity syndrome is a rare genetic disease characterized by varying degrees of feminization in individuals with a male karyotype. It should not be neglected, especially in the differential diagnostic balance of primary amenorrhea. Genetic testing of the karyotype should be performed whenever uterine agenesis is suspected.

Supported by MH CZ - DRO (FNBr, 65269705)