CASE REPORT A 33-year-old female was referred to the Department of Gynaecology because of an aberrant ultrasound obtained by her obstetrician. She presented at eight weeks gestation with her fourth pregnancy. Previous pregnancies were uncomplicated. She felt otherwise well. Ultrasound demonstrated an intact gravidity and a 1.0 cm x 1.3 cm round echogenic structure on the right side of the uterus, which seemed to be located in a dilated vein (figure 1).