A Case of Reactive Lymphoid Hyperplasia That Is Difficult to Differentiate From Renal Cancer With Lymph Node Metastasis. - Nakagawa S; Nakai Y; Hayashi Y; Kurahashi Y; Okamoto S; Nakamura Y; Kawamura N; Nagahara A; Nakayama M; Nishimura K (IJU case reports, 2026)