In case of a traumatic event, preservation of the injured renal and kidney function represents the goal of non-operative management (NOM) of renal trauma. The substantial benefits of non-operative management for minor blunt renal injury have already been clearly described in current literature, but its value for major blunt and penetrating renal injuries are still under debate and not clearly highlighted. We hereby fully report a case of a 64 years old male patient with a history of a thoraco-abdominal blunt trauma, victim of aggression caused by a blunt object, which resulted in grade IV injury of the right kidney and associated grade II hepatic injury and right adrenal injury – grading according to the American Association for the Surgery of Trauma (AAST) injury scale guidelines – evaluated through contrast enhanced emergency CT imaging. The patient was hemodynamically stable upon admission to the Emergency Department of Clinical Emergency County Hospital of Brașov, Romania. Non-operative management strategy was chosen, therefore constant and close monitorization and follow-up CT examinations were performed. The patient was subsequently discharged after 8 days, with no further complications reported.