Non-syndromic uterovaginal malformation

Non-syndromic uterovaginal malformation refers to a group of congenital anomalies affecting the development of the uterus and/or vagina that occur in isolation, without the additional features seen in syndromic conditions such as Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome type 2 or other multi-system disorders. These malformations arise from abnormal development of the Müllerian (paramesonephric) ducts during embryogenesis and can include a wide spectrum of anomalies such as uterine agenesis, vaginal agenesis, uterine septum, bicornuate uterus, unicornuate uterus, uterus didelphys, or obstructive vaginal anomalies. The reproductive system is the primary body system affected, though secondary consequences may involve the urinary tract in some cases. Clinically, these malformations may present at puberty with primary amenorrhea (absence of menstruation), cyclic pelvic pain due to obstructed menstrual flow, or may remain undetected until difficulties with sexual intercourse or infertility arise in adulthood. Some patients are diagnosed incidentally during imaging for other reasons. The severity of symptoms depends on the specific type and degree of the malformation. Diagnosis typically involves pelvic ultrasound, MRI, and sometimes hysteroscopy or laparoscopy for definitive characterization. Treatment is tailored to the specific malformation and the patient's symptoms and reproductive goals. Surgical interventions may include vaginoplasty (creation or reconstruction of the vagina), hysteroscopic resection of uterine septa, or other reconstructive procedures. Non-surgical vaginal dilation therapy (such as the Frank method) is often a first-line approach for vaginal agenesis. Assisted reproductive technologies may be considered for patients with fertility challenges. Psychological support is also an important component of care, as these conditions can significantly impact quality of life and emotional well-being.

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