Title: A 64 -year-old male with diffuse renal large B-cell non-Hodgkin lymphoma:A rare Case Report.Hasan Haydar a,+ ,Mouhammed Sleiaya, Hadi Alabdullaha , Rouba Al-alloush a, Nour Al_alloush a , Mohamad Yasin Lutfi b, Simon Youssefc, Suaad Hamshod.a Faculty of Medicine, Hama University, Hama, Syrian Arab Republic.b Hama National Hospital,Urology Department, Hama, Syrian Arab Republic.c Hama National Hospital,pathology Department, Hama, Syrian Arab Republic.d Rheumatology department Faculty of medicine, Damascus University, Damascus ,Syrian Arab Republic.*Corresponding author: Hasan Haydar, Faculty of Medicine, Hama University, Hama, Syrian Arab Republic. email: [email protected]+ Hasan Haydar ,Mouhammed Sleiay, Rouba Al-alloush , Nour Al_alloush, Mohamad Yasin Lutfi , Simon Youssef , Suaad Hamsho are co-first authors. All contributed equally in this paper.Emails & ORCID:Hasan Haydar: [email protected] Sleiay:[email protected]: 0009-0003-8887-0739Hadi Alabdullah :[email protected] Al-alloush : [email protected] Al_alloush: [email protected] Yasin Lutfi: [email protected] Youssef:[email protected] Hamsho,[email protected]