Case Report: Pembrolizumab in a patient with preexisting paraneoplastic dermatomyositis and sarcomatoid urothelial carcinoma. Searching for balance - Torniai, Mariangela; Martino, Giuseppe Pio; Gucciardino, Calogero; Angelici, Stefano; Bisonni, Renato (Frontiers in Immunology, 2025)