Pacient with high fever for over 1 week, in treatment with antibiotis, leucocitosis, PCR high, and pain in the superior abdomen. What's the diagnosis?

Age, sex, PMHx trave. Age, sex, pmhx, travel hx of the pt, how everything started, recent medical procedures or surgery? From acute cholecystitis, perforated viscous and peritonitis, acute appendicitis, complicated pancreatitis, any of causes for fever of unknown origen: lymphoma, thyfoid fever, endocarditis, collagen vascular disorders (vasculitis), medications, kidney stones with pyelonephritis? Keep us posted.