Conversation: The conversation between human and AI assistant.
[|Human|] For the past six months Ive had three trans-vaginal ultrasounds for an ovarian cysts. It started put at six cms, then went down to 2 cms and now it is 3.5 cms. The first ultrasound was suspicious for ovarian cancer, but now they say is a simple cyst. What should I do?
[|AI|]  Hi, Thanks for writing in. If an ovarian cyst is continuously decreasing in size then malignancy is unlikely. A cyst measuring more than 3 cm requires regular monitoring. I guess that in the first ultrasound, the cyst was measuring 6 cm and had no features other than its size to suspect malignancy. It is a regular protocol to repeat ultrasound in 2 to 3 months before doing cancer specific tests. I agree that in the second ultrasound, the cyst reduced to 2 cm which is a good response. You have not mentioned any treatment you were taking at that time and I guess you were taking treatment and therefore there was a response. This sort of treatment response occurs when there might be any hormonal imbalances causing the cyst and correcting it leads to decrease in the cyst size. In the third ultrasound, it is possible that the hormonal balance again got altered and therefore the cyst increased. However, to put at rest any suspicion of malignancy I recommend you to get a CA 125 level test done to confirm that your cyst is not at risk or a malignancy. Please do not worry.