The GCS Project is dedicated to finding a cure for Gynecological Carcinosarcoma, also known as malignant mixed Müllerian tumor (MMMT), providing current scientifically valid information, and offering a place for the community impacted by this cancer to share stories and hope.

What is Gynecological Carcinosarcoma?


Gynecological Carcinosarcoma (GCS) is a cancerous growth found in the uterus, ovaries, fallopian tubes and other parts of the body. This type of cancer is also called malignant mixed Müllerian tumor or MMMT. GCS contains two types of cells: carcinomatous and sarcomatous. GCS is rare. Fewer than 1,000 cases of GCS are diagnosed each year. Because carcinosarcoma is so rare, there have been no large clinical trials that focus on this disease to help identify and study effective treatments. You can read more about GCS here.

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Newly Diagnosed?

If you have recently been diagnosed with a GYN Carcinosarcoma, this is the place to find all you need to know about what to ask your care team.

GCS Resources

You will find the most up to date list of gynecological oncology specialists here. We will continually update this resource page with the latest findings of specialists and care teams for GYN carcinosarcoma.

Community Forum

We all need support. Join our community and know that you are not alone! We have multiple topics of interest to browse, or register and post your own! 


GCS Project Spotlight Topics

The latest news and most engaged discussions from our website.

Welcome to our new Website!

An improved forum and better navigation will allow you to better engage and find what you need.

GCS Specialists

Diane Redington has interviewed several experts in GCS who are accepting new patients.

What to do and ask when you are diagnosed with GCS

We have assembled a list of important questions to ask when interviewing your care team.

The GCS Project is soley dedicated to finding the cure for GCS/MMMT cancer.

Our first fundraising effort successfully raised $300,000 to launch a very specific, highly technical genetic investigation of GCS to move the science forward. Read about the research here.

Our second fundraising campaign is to launch & support a GCS-focused clinical trial. This is a major undertaking of raising approximately $250,000. You can help make this a reality via your support!

Donate Here


Join this amazing community providing hope, answers, resources & support!


Join our amazing community. Sign up and register to be notified of all the latest updates as we move research forward and provide the support that you need!


Every dollar donated to the GCS Project is directed to research for the treatment and cure of this rare cancer. In addition to your contribution consider holding a fundraising event that not only helps fund research but builds awareness in the community of this rare cancer.

Raise Awareness

The most effective way to build awareness is through the media. Reach out to the various media channels in your area to educate the community on GCS and the need for research.

Help Build Our Experts Knowledge Base

Because patients living with GCS have a direct stake in their own medical care, they are in a unique position to identify and vet effective expertise in treating GCS. 


Register to The GCS Cancer Project for important updates on our research, clinical trials and latest news.