Case of suspected torsion and amputation of myoma during pregnancy

INTRODUCTION: Uterine myoma occurs in 1.6–2% of pregnancies. Most myomas during pregnancy are asymptomatic, but 10–20% may develop complications. The most common complication is abdominal pain, usually caused myoma degeneration or torsion of a pedunculated myoma. CASE PRESENTATION: A 40-year-old pregnant woman was transferred with severe left upper abdominal pain with suspicion of left ovarian torsion at 32 weeks of gestation. Magnetic resonance imaging (MRI) demonstrated a 9.8 cm-sized oval mass abutting the uterine fundus, suggesting subserosal myoma with degeneration. She was admitted for pain control, and the pain was relieved in a few days with conservative management. Two years later, she revisited our hospital for the treatment. Total laparoscopic hysterectomy with bilateral salpingectomy was performed. A 6-cm isolated solid mass adhering to the omentum in the pelvic cavity was observed intraoperatively. The trace on the anterior wall of the uterus was considered to be a broken pedicle that had initially connected the mass. CLINICAL DISCUSSION: In our case, the patient had severe abdominal pain, and ultrasound and MRI findings suggested subserosal myoma degeneration. A retrospective diagnosis of torsion was made following the surgery, which was assumed to cause the pain during pregnancy, and that an amputation occurred during or after the pregnancy. CONCLUSION: Diagnosis is based on clinical manifestations and radiologic examination, however, it is usually difficult to diagnose preoperatively, especially among pregnant women who have diagnostic test limitations. Therefore, if a pregnant woman with a myoma complains of abdominal pain, various possibilities should be considered