Article

A Case Series: High PD-L1 Expression and Postoperative Immunotherapy Response in Four Cases of Sarcomatoid Urothelial Carcinoma

2026-02-03

Abstract excerpt

<title>Abstract</title> <p>Urothelial carcinoma with sarcomatoid differentiation (UCSD) is a rare and highly aggressive variant with a dismal prognosis. While immune checkpoint inhibitors (ICIs) have revolutionized treatment for advanced urothelial carcinoma, data on PD-L1 expression and its therapeutic implications in UCSD remain scarce. This case series describes four patients with upper tract UCSD who underwen...

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Literature Corpus work: 2755417b-a9e3-5805-9b8d-5304a955ce41
DOI: 10.21203/rs.3.rs-8567844/v1

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