A 64‐year‐old male with primary diffuse renal large B‐cell non‐Hodgkin lymphoma: A rare case report oleh Hasan Haydar, Mouhammed Sleiay, Hadi Alabdullah, Rouba Al‐alloush, Nour Al_alloush, Mohamad Yasin Lutfi, Simon Youssef, Suaad Hamsho