Most cysts, even complex multi-septated ones are benign. Unfortunately, ovary (ies) as well as the uterus are oftentimes removed unnecessarily. Less than 10% of female organ removal surgeries are done for confirmed cancer. Numerous studies show that removal of any part of the female "reproductive" system does more harm than good.
Your situation is similar to what I experienced 13 years ago. I was rushed into surgery for a 9.5 cm complex cyst that I told may be cancer. A frozen section was done while I was in the operating room. Even though it was benign, my surgeon continued to remove the rest of my organs. The after effects have been beyond devastating. My regret consumes my every thought on a daily basis.
A surgeon with good cystectomy skills should be able to remove the cyst and save your ovary if the cyst is benign. And there should be no reason to remove any other parts.
I have connected with so many women who are suffering after organ removal. A recent comment midway through this thread - https://www.medhelp.org/posts/show/2256660#post_14451187
- is from a woman (Krista) whose organs were needlessly removed for a basketball sized benign ovarian cyst.
I would be happy to share the after effects as well as some studies if you'd like.