Practical Approach to Ovarian Masses - Part 5-2
The Retracting Clot in Hemorrhagic Cysts

characteristics of retracting clot

• As the hemorrhagic clot within the ovarian cyst begins to resolve, it retracts often resulting in a flat surface with a fluid level or a concave surface as discussed in the previous video

filly's rule of retracting clots

• If you can possibly think of a way that a retracting clot could give the appearance you are seeing - Get a follow up sonogram!

how long to wait for followup?

• We typically recommend 6 weeks for a followup
  • This will allow a full menstrual cycle to pass and the lesion should be gone
  • This will allow you to report "normal ovary"
  • If the lesion did, in fact, end up being a malignancy, 6 weeks is unlikely to make a clinically significant difference.
• ​However, if you want a shorter followup because of great concern, even an interval of 1 week will show changes on resolving clot, whereas neoplastic tissue will not change at all