My doctor did a ultrasound of right ovary.I knew 2 years ago I had a cystic the size of 2.8x1.3 cm.. I moved and had not been back for a check up in 2 years, which I know is wrong and will Never miss again.But now the ultrasound showed in right adnexa, there is a hypoechoic lesion measuring 1.4 cm x2.2cm 12.5cm.This is slightly heterogeneous and difficult to completely characterize. Cystic lesion right adnex. It is unclear weather this a complex ovarian cyst or cystic lesion in the pelvis otherwise.Another consideration would be small fluid collection in the pelvis.Can you tell me what is the differents in Ovanrian Cyst or Cystic lesion? Is there a big chance this could be cancer? My grandmother died of Ovarian Cancer at 98 years old? Thank you. I 'm going to a Surgery next week.