Transvaginal sonography of hematotrachelos and hematometra causing acute urinary retention after previous repair of intrapartum cervical lacerations

Obstruction of the lower female genital tract leading to proximal dilatation and development of hematocolpos, hematotrachelos, and hematometra is most commonly a result of congenital abnormalities. 1 - 3 These conditions include an imperforate hymen, a complete transverse vaginal septum, and vaginal and, rarely, cervical atresia. 1 - 3 Rarely these abnormalities may be unilateral, associated with lateral fusion defects of the mullerian duct and concurrent ipsilateral renal agenesis. 4 Symptoms noted in adolescents in conjunction with congenital obstruction of the lower female genital tract usually consist of primary amenorrhea and dsymenorrhea, 1 - 3 although acute urinary retention has also been rarely reported. 5 - 7 We present an unusual case in which transvaginal sonographic findings of marked hematotrachelos and hematometra were depicted in a multi-parous patient with acute urinary retention 2 years after repair of cervical lacerations sustained during vaginal delivery.