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Why would endometriosis require a procedure like ovarian cancer surgery?

Topic:Surgery
Affected areas:pelvicabdominal

Most people with endometriosis will never need a cancer-style operation. We only consider an oncology-level approach in select, highly complex situations—such as very large or concerning-appearing ovarian masses on imaging, severe deep infiltrating disease involving multiple pelvic compartments, or rare cases where the overall picture raises concern for possible malignant change.


In these scenarios, the goal isn’t to treat “hidden cancer,” but to safely and completely remove aggressive disease when anatomy is distorted and the surgical risks are higher. This kind of planning often requires the same level of meticulous technique, team coordination, and pathology strategy used in oncologic surgery. If you’ve been told a more extensive procedure may be needed, our team can review your imaging and history with you and explain exactly what we’re concerned about and why.

An illustration of a woman getting robotic excision surgery.

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Dr. Steven Vasilev delivers best-in-class endometriosis guidance and a personalized treatment plan—built on evidence and your unique biology.


Led by Steven Vasilev, MD—an internationally recognized endometriosis specialist & MIGS surgeon—Lotus Endometriosis Institute is virtual-forward, with many patients traveling nationally for care. Clinical evaluation and surgical treatment are provided in California.

Santa Monica, CA

2121 Santa Monica Blvd, Santa Monica, CA 90404

Operating Hours

8:00 am - 5:00 pm
Monday - Friday

Arroyo Grande, CA

154 Traffic Way, Arroyo Grande, CA 93420