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Washington woman treated for Stage 4 melanoma during pregnancy using immunotherapy

A Washington woman diagnosed with Stage 4 melanoma while pregnant in 2020 was declared cancer-free following surgeries and immunotherapy.

Published August 19, 2026 at 9:50 AM EDT

The short answer

A Washington woman diagnosed with Stage 4 melanoma while pregnant in 2020 was declared cancer-free following surgeries and immunotherapy. Jenney Bitner, a 38-year-old Washington resident, was diagnosed with Stage 4 metastatic melanoma in early 2020 after an MRI revealed a tumor in her brain.

Washington woman treated for Stage 4 melanoma during pregnancy using immunotherapy

The Facts

Who
Jenney Bitner, her son Marcus, and Dr. Alicia Zhou of the Cancer Research Institute.
What
A woman was diagnosed with Stage 4 melanoma and a brain tumor while pregnant, underwent surgery and immunotherapy, and was declared cancer-free.
When
Beginning in February 2020, with the cancer-free diagnosis in October 2020
Where
Washington and San Diego
Why
The case highlights the use of immunotherapy to treat metastatic cancer that was previously considered difficult to cure.

Timeline of what happened

Key dates and decisions, in the order they occurred.

  1. February 1, 2020

    Bitner experiences symptoms during family trip to San Diego

  2. May 4, 2020

    Son born via C-section at 34 weeks gestation

  3. May 11, 2020

    Second brain surgery removes entire tumor mass

  4. June 1, 2020

    Bitner begins immunotherapy treatment cycle

  5. October 1, 2020

    Oncologist reports no evidence of disease following treatment

Jenney Bitner, a 38-year-old Washington resident, was diagnosed with Stage 4 metastatic melanoma in early 2020 after an MRI revealed a tumor in her brain. Bitner, who was 22 weeks pregnant at the time, had initially sought care for headaches, nausea, and vomiting, which two urgent care facilities attributed to pregnancy symptoms. The diagnosis followed two falls Bitner experienced after returning from a trip to San Diego.

According to the American Cancer Society, patients with melanoma that has spread to distant organs or the brain have a five-year survival rate of approximately 35%. Bitner's medical team recommended an aggressive treatment plan that required balancing her health with the safety of her unborn child. Because the necessary immunotherapy was not considered safe for the fetus, doctors monitored Bitner for several weeks before delivering her son via C-section at 34 weeks on May 4, 2020.

Following the birth, Bitner underwent a second brain surgery to remove a recurring tumor that had grown back to its full size in the weeks preceding delivery. Surgeons were able to remove the entire mass during the second procedure. In June 2020, Bitner began immunotherapy, a treatment designed to stimulate the immune system's white blood cells to attack cancerous cells. While Bitner experienced side effects including an allergic reaction and encephalitis, her oncologist reported in October 2020 that there was no remaining evidence of disease.

Patients undergoing such treatments may face significant medical costs and severe physical side effects, as evidenced by Bitner's multiple hospitalizations for encephalitis and allergic reactions. For pregnant patients, the diagnosis necessitates complex coordination between oncology and neonatal teams, often resulting in premature births and NICU stays. Bitner's son weighed 3 pounds 12 ounces at birth and required specialized care before being cleared to leave the hospital. These procedures and the subsequent recovery periods can cost hundreds of thousands of dollars, though specific figures for Bitner's care were not reported.

The use of immunotherapy in this instance highlights an evolving precedent in oncology for treating aggressive cancers that do not present with traditional external symptoms, such as the skin lesions typically associated with melanoma. As research continues through organizations like the Cancer Research Institute, the availability of these treatments may expand for patients who previously had limited options. Bitner, who has remained cancer-free for nearly six years, continues to advocate for immunotherapy research while monitoring for potential recurrence through regular oncological follow-ups.

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Questions readers ask

What happened: Washington woman treated for Stage 4 melanoma during pregnancy using immunotherapy?

A woman was diagnosed with Stage 4 melanoma and a brain tumor while pregnant, underwent surgery and immunotherapy, and was declared cancer-free.

Who is involved?

Jenney Bitner, her son Marcus, and Dr. Alicia Zhou of the Cancer Research Institute.

When did this happen?

Beginning in February 2020, with the cancer-free diagnosis in October 2020

Where did this happen?

Washington and San Diego

Why does this matter?

The case highlights the use of immunotherapy to treat metastatic cancer that was previously considered difficult to cure.