Thank you for your response! Helpful!
Hello,
This mass can be a cyst , benign or malignant mass. Ovarian cysts in post-menopausal women are common but any cysts in a postmenopausal woman should be taken seriously and ovarian cancer should be ruled out by means of CA125 which you have already got done. Ovarian cysts are considered for removal if they cause pain or have tendency to become malignant or there is elevated CA125. Given your history of abdominal swelling, ovarian malignancy can be a possibility.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.