Hello Nicola8821 and a warm welcome to Cancer Chat! 

16cm that is indeed a large cyst. I am sorry to hear that your initial surgery was postponed because of covid. I can completely understand why you are feeling that you would like to have it checked again to see whether it has grown in size since 2019. Perhaps you could try and call your GP and mention that it is making you really anxious not to know whether it has grown since 2019 and you could perhaps ask whether you could have another scan? You could also try and talk to another doctor about this and seek a second opinion and mention that you would be reassured if they gave you another scan. 

The long waiting game for your surgery can be nerve-wracking and I hope that you will be able to have the procedure soon. I know it is really hard but try not to worry too much or anticipate what it might be. The best thing to do to avoid thinking too much about this is to keep busy and distracted if you can and avoid looking things up online. 

I hope you will also hear from others here who have been through all this before and that they will be along soon to share their story with you. 

Keeping everything crossed for you that everything turns out fine. 

Best wishes, 

Lucie, Cancer Chat Moderator