Gestational Trophoblastic Neoplasia Program

The Johns Hopkins Gestational Trophoblastic Neoplasia (GTN) Program brings together a team of internationally recognized experts in this type of rare gynecologic cancer to guide you through diagnosis, treatment and recovery. We are one of the few dedicated programs in the world specializing in the management and treatment of GTN, and we offer a comprehensive, multidisciplinary approach that leads to highly effective outcomes.

Whether you’re newly diagnosed or seeking a second opinion, we’re here to help you understand your options and provide a clear path forward.

Schedule an Appointment

A diagnosis of gestational trophoblastic neoplasia can feel overwhelming — but you’re not alone. Give us a call to make an in-person appointment with one of our GTN specialists in the Baltimore area, or to schedule a virtual consultation if you are located in Maryland, Pennsylvania, Texas or New Mexico.

Why Choose Johns Hopkins

When it comes to rare conditions like GTN, experience and specialization make all the difference. Here’s why patients from around the world choose our program:

Global Leaders in Rare GTN Care

We are one of the few programs in the world solely focused on gestational trophoblastic neoplasia, bringing deep, specialized expertise to even the most complex cases.
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Integrated, Multidisciplinary Treatment

Your care team includes experts in gynecologic oncology, chemotherapy, surgery, pathology and more — all working together to deliver the most effective, coordinated care.
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Advanced, Research-Driven Therapies

We stay at the forefront of GTN treatment through active participation in clinical research and continuous innovation in evidence-based care.
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Full-Spectrum Support Beyond Treatment

From fertility preservation and mental health services to long-term follow-up, we can support you through every stage of your journey.
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About Gestational Trophoblastic Neoplasia

GTN is a rare group of tumors that involve abnormal growth of cells inside a woman’s uterus after conception. While the condition is serious, it is also highly treatable—especially when managed early and by experienced specialists. 

Our Team

Our team combines compassionate care with the highest level of clinical expertise.

Colleen C. McCormick, MD MPH

  • Director, Gestational Trophoblastic Neoplasia Program

Expertise: Obstetrics and Gynecology, Gynecologic Oncology

Locations

The Levi Watkins, Jr., M.D., Outpatient Center

601 North Caroline Street, Floor 6,
Baltimore, MD 21287
Johns Hopkins Outpatient Center

Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville

10753 Falls Road, Pavilion II Suite 245
Lutherville, MD 21093
Green Spring Station Pavilion II