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Injection of Syngeneic Murine Melanoma Cells to Determine Their Metastatic Potential in the Lungs
Published on: May 24, 2016
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Metastatic melanoma posing as a pelvic mass.
Alexsaundra Zywicki1, Naixin Zhang2, Olivia Sagan3
1Department of Obstetrics and Gynecology, University of Rochester Medical Center, Rochester, NY, USA.
Gynecologic Oncology Reports
|January 17, 2023
Summary
Metastatic melanoma in the pelvis is rare and challenging to diagnose. This case highlights the importance of considering melanoma in pelvic masses, even with a history of other cancers.
Area of Science:
- Oncology
- Pathology
Background:
- Pelvic metastasis from melanoma is an uncommon presentation.
- Metastatic melanoma can mimic other malignancies, complicating diagnosis.
Observation:
- A female patient with a history of colon cancer presented with a pelvic mass.
- The mass was initially suspected to be ovarian cancer.
Findings:
- Surgical exploration and subsequent pathology revealed a dual diagnosis.
- The pelvic mass was consistent with both recurrent colon cancer and a newly diagnosed, synchronous metastatic melanoma.
Implications:
- This case underscores the diagnostic challenges posed by rare pelvic melanoma metastasis.
- It emphasizes the need for comprehensive histopathological evaluation in complex pelvic masses.

