Near complete remission of a locally advanced giant melanoma of the vulva following hypo‑fractionated radiotherapy and immune checkpoint inhibitors: A case report
- Shuang Chen
- Xuemei Deng
- Chen Xie
- Qingke Dong
- Hongru Yang
Affiliations: Department of Oncology, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China, Department of Oncology, Luzhou People's Hospital, Luzhou, Sichuan 646000, P.R. China
- Published online on: November 2, 2022 https://doi.org/10.3892/ol.2022.13578
Copyright: © Chen
et al. This is an open access article distributed under the
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Melanoma is known to be insensitive to radiotherapy; however, the present study reports the case of a patient with vulvar malignant melanoma in which near complete remission of the target area was observed after implementing immune checkpoint inhibitors (ICIs) and hypo‑fractionated radiotherapy (HFRT). The patient was treated with an intensity‑modulated radiation therapy technique that delivered a hypo‑fractionated dose of 3,000 cGy in six fractions. After 3 days, the patient underwent immunotherapy with two cycles of 240 mg triprizumab every 2 weeks. Tumors that underwent radiotherapy had markedly decreased in size and a near complete remission of the melanoma was observed 4 months after radiotherapy. However, the metastases in the liver and lungs continued to grow, new metastases appeared in the abdominal subcutaneous tissue and enlarged lymph nodes were observed in the pelvic area. The results of the present study indicated that ICIs and HFRT exert a marked local effect, but no abscopal effect.