Stage II Ovarian Squamous Cell Carcinoma: Caitlin's Survivor Story

This ovarian cancer diagnosis at a glance

Stage at diagnosis
Stage II
Subtype
Squamous Cell Carcinoma
Biomarkers
PD-L1: high expression
Sex
female
Treatment
surgery, chemotherapy, targeted therapy and immunotherapy
Outcome
Cancer-Free / NED

Treatment course, step by step

  1. She underwent right salpingo-oophorectomy to remove the right ovary and fallopian tube.
  2. She started carboplatin and paclitaxel chemotherapy with bevacizumab every 3 weeks.
  3. Pembrolizumab was added during cycle 3 after tumor testing showed high PD-L1 expression.
  4. She completed 6 chemotherapy cycles.
  5. From June 2024, she continued bevacizumab and pembrolizumab as maintenance therapy.
  6. After recurrence was found in February 2025, she underwent debulking surgery on April 24, 2025, removing the new growth, part of the small intestine and omentum.
  7. She remained on maintenance therapy.

What happened, in summary

Caitlin Koehler was 27 when a year of severe abdominal pain finally led to CT imaging that found an 11 cm mass on her right ovary. She underwent removal of the right ovary and fallopian tube, and pathology showed Stage II squamous cell carcinoma arising in a teratoma, a rare ovarian cancer. At MD Anderson, she began carboplatin and paclitaxel chemotherapy with bevacizumab every 3 weeks. Tumor testing showed high PD-L1 expression, so pembrolizumab was added during her third cycle. Caitlin completed 6 chemotherapy cycles and continued bevacizumab and pembrolizumab as maintenance therapy from June 2024. A routine scan in February 2025 found new growths in the right abdomen and along the small bowel. On April 24, 2025, she underwent debulking surgery that removed the recurrent growth, part of the small intestine and the omentum while preserving her uterus and left ovary. She continued maintenance therapy afterward. Follow-up scans after the second surgery were clear with no evidence of disease. Fertility concerns and uncertainty were major parts of the experience, and Caitlin used family support and therapy to help manage the emotional impact.

Where this story comes from

This is a lay summary of an account first published by MD Anderson. Read the original in full

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