A Novel Technique for the Reconstructive Formation of an Annular Hymen in Cases of Postpubertal Imperforate Hymen

Distal vaginal atresia: a report of a rare type found a late-term fetus and its histological comparison with the normal pelvis

Solitary distal vaginal atresia is generally caused by a transverse septum or an imperforate hymen. We found a novel type of distal vaginal atresia in a late-term fetus (gestational age approximately 28 weeks) in our histology collection. This fetus had a vaginal vestibule that was closed and covered by a thick subcutaneous tissue beneath the perineal skin in the immediately inferior or superficial side of the imperforate hymen. The uterus, uterine tube, anus, and anal canal had normal development. The urethral rhabdosphincters were well-developed and had a normal topographical relationship with the vagina, but the urethrovaginal sphincter was absent. Thus, vaginal descent seemed to occur normally and form the vestibule. However, the external orifice of the urethra consisted of a highly folded duct with hypertrophied squamous epithelium. Notably, the corpus cavernosum and crus of the clitoris had poor development and were embedded in the subcutaneous tissue, distant from the vestibule. Normally, the cloacal membrane shifts from the bottom of the urogenital sinus to the inferior aspect of the thick and elongated genital tubercle after establishment of the urorectal septum. Therefore, we speculate there was a failure in the transposition of the cloacal membrane caused by decreased elongation of the genital tubercle. The histology of this anomaly strongly suggested that the hymen does not represent a part of the cloacal membrane, but is instead a product that appears during the late recanalization of the distal vagina after vaginal descent. The transverse septum was also likely to form during this recanalization.

Hymen-saving hymenotomy of imperforate hymen in neonates and adolescents: tertiary medical center experience

Background

Imperforate hymen (IH) is the most common obstructive anomaly of female genital tract. Hymen saving has a great importance for both cultural and religious reasons. Conventional surgical treatment for this condition is cruciate incision hymenotomy or hymen-saving central annular hymenotomy (HSCAH). This study aimed to review presentations and management of neonate and adolescents with IH at one tertiary hospital over 12 year’s period. The aim also was to stress upon importance of hymen saving to our Muslim community and improve knowledge, enable targeted education, and reduce unnecessary tests and diagnostic delay for this condition.

Methods

Twenty-five patients with IH were diagnosed and treated in this retrospective cohort study over 12 years, from January 2010 till December 2021. Demographic characteristics of the patients, their symptoms and signs, investigations, type of operations, recurrence, and infections were recorded and analyzed.

Results

Saudi accounted for the majority of IH cases (88%). There were fifteen adolescents, and ten were neonates. Bulging imperforate hymen, pelvic/abdominopelvic mass, constipation, acute urine retention, abdominal discomfort, and lower abdominal distension were among the signs and symptoms. All 25 patients had HSCAH, 21 of whom had primary HSCAH and four of whom had secondary HSCAH due to recurrence. To avoid recurrence, HSCAH was performed with suturing of the inner vaginal mucosa to the exterior vestibular mucosa.

Conclusion

Early diagnosis of imperforate hymen for neonate and adolescent girls and prompt definitive HSCAH could have positive impact on treatment outcome and decrease complications and fulfill integrity of hymen as virginity of high importance in our Muslim community and other similar culture, where hymen-sparing procedure is preferred by most of these patients and families.