Hidden obstruction: A rare case of hematometrocolpos in a young adolescent with vaginal atresia.

Hematometrocolpos is a condition characterized by the accumulation of menstrual blood in the uterus and vagina due to an obstruction, often caused by congenital malformations such as vaginal atresia or imperforate hymen. A 12-year-old girl presented with acute pelvic pain and absence of menarche. Ultrasound ruled out ovarian pathology but revealed distension of the cervix and vagina. MRI confirmed hematometrocolpos and third middle and distal vaginal atresia. MRI is crucial for diagnosing genital malformations and differentiating hematometrocolpos from other gynecological conditions. Surgical correction was successful, alleviating symptoms and preventing future complications.