Can ovarian serous cystadenocarcinoma cyst resemble functional cyst on mri?

No: A simple cyst has a very specific benign appearance, while a cystadenocarcinoma usually has characteristics that are pathognomonic for a complex mass. A benign hemorrhagic cyst may resemble a worrisome cystadenoca. If you are worried about an ovarian cyst, talk to your doctor. You can do an ultrasound in 4-6 weeks. If it is a cancer, it will not be the same size or have the same characteristics.