Appearance of Dehiscence at the Uterine Scar Site on Ultrasound: A Case Report

With the increase in cesarean section rates, uterine rupture, one of the obstetric emergencies, has become an important clinical condition leading to maternal–fetal mortality and morbidity. According to risk factors for uterine rupture, it can be classified as rupture of a previous scar (cesarean section, myomectomy), traumatic rupture of the uterus (resulting from trauma), spontaneous rupture of the uterus due to underlying pathologies (uterine anomalies, multiparity), and spontaneous uterine rupture in apparently normal primigravida patients. Among these, uterine rupture due to a scarred uterus is the most commonly seen. Currently, optimal cutoff values for predicting uterine scar rupture have not been definitively established. A 35-year-old pregnant woman, gravida 3, parity 2, with a history of 2 previous cesarean sections, was seen during a routine outpatient clinic visit when she was 23 weeks and 2 days pregnant based on her last menstrual period. During the visit, approximately a 5 cm area of amniotic fluid protruding toward the bladder was observed along the old incision line, suggesting a disruption in the continuity of the myometrium at the scar site. Preoperative preparations were made, and the patient was taken for a cesarean section. Interestingly, there was no apparent evidence of dehiscence, which is commonly seen in many patients who have had previous cesarean sections. The cesarean section was successfully completed without complications.