Clinical and Reproductive Characteristics of Patients with Mixed Gonadal Dysgenesis (45,X/46, XY).

Mixed gonadal dysgenesis (MGD) or 45,X/46,XY mosaicism is a sex chromosomal disorder of sexual development. We aim to characterize the clinical and reproductive features of 45X/46 XY attending tertiary care center in Kerala. Retrospective review of clinical records which include clinical presentation, hormonal profile, cytogenetics, psychosexual assessment, and histopathology of gonadectomy specimen of ten cases of 45X/46 XY mosaicism who attended Endocrinology/ OBG out patient department from 2008 to 2020. The mean ages of all the cases were 12 ± 3.79 years (± 2 SD). Short stature was universally seen. Virilisation was the most common manifestation (80%) followed by delayed puberty (20%). Autoimmune thyroid disease was seen in 40% of cases. We noticed a delayed presentation in our clinical study. 45X/46 XY subjects who wished to continue as female underwent gonadectomy and were feminized with hormone replacement therapy. Male 45X/46 XY who retained their undescended testis is planned for periodic surveillance for malignancy. 45X/46 XY may present like Turner's syndrome in clinical practice. Early counseling and gender assignment by a panel of specialists are crucial. Delayed presentation is less commonly encountered now a day and may pose a clinical challenge. Management in 45X/46 XY is multi-disciplinary which includes Turner's like surveillance, proper sex assignment, timely genital reconstruction surgeries, gonadectomy, gonadal monitoring, and hormonal replacement therapy is needed.

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© Federation of Obstetric & Gynecological Societies of India 2021.