Giant exophytic cystic adenomyosis with a levonorgestrel containing intrauterine device out of the uterine cavity after uterine myomectomy: A case report

Figure 1 Imaging examinations. A: B-mode ultrasound showed an anterior and normal uterus size and a cystic echogenic mass that measured 9.5 cm × 7.4 cm × 7.4 cm located at the posterior uterine isthmus. The white arrow indicates an intrauterine device contained within this cystic mass; B: On the T1-weighted image, the uterine isthmus muscle was discontinuous, and the cervical canal lost its normal shape. A communication was observed between the posterior isthmus of the uterus and the endometrial cavity and cervical canal.