Concordance and clinical significance of uncommon variants of bladder urothelial carcinoma in transurethral resection and radical cystectomy specimens

Cai, T; Tiscione, D; Verze, P; Pomara, G; Racioppi, M; Nesi, G; Barbareschi, M; Brausi, M; Gacci, M; Luciani, Lg; Liguori, G; Gontero, P; Campodonico, F; Simonato, A; Boddi, V; Di Stasi, Sm; Colombo, R; Serretta, V; Carmignani, G; Malossini, G; Altieri, V; Carini, M; Terrone, C; Bassi, P; Montorsi, Francesco; Ficarra, V; Selli, C; Mirone, V; Bartoletti, R.