Us shows a normal sized uterus with an ap diameter of 5.6cm. The myometrium is largely homogeneous, save for a solid tissue mass with mixed echo texture measuring 1.2cm in the anterior wall (intramural). There is a gestational sac with a diameter of 17mm corresponding to a GA of 6 weeks + 0day without any fetal echo for now in the mid cavity. There is a cystic mass measuring 2.3cm by 2.1cm in the right adnexa. It has a regular wall and contains clear fluid. Pouch of Douglas is normal. No free pelvic collection. Please explain what this means.