Hi.CA 125 is elevated not only in Ovarian cancers but also in other cancers like endometrial cancer
,fallopian tub cancer,breast cancer
etc.It is also raised in Non cancerous conditions like Endometriosis
,several diseases of the ovary like Ovarian cyst
etc.As per literature,only 3% of females with raised CA125 levels have Ovarian cancer.But,you should be further evaluated.Hope the Swelling in the Ovary is a benign one,not cancerous.All the best.I can follow if you post the CT reports too.Take care.