Hysteroscopy showing vascular polyp alongside the levonorgestrel intrauterine system (LNG-IUS, Mirena)

Saline infusion sonograph delineating an intrauterine polyp alongside the LNG-IUS (longitudinal), left panel, and in transverse, right panel

Histology of endometrial polyp showing simple cystic hyperplasia with dilated glands in loose stroma