Bone Metastasis Disguised as Back Pain: A Renal Cell Carcinoma Case Study Doctors acquire knowledge through textbooks and research papers, but the true depth of medicine is often revealed by the patients we treat in the clinic. Knowing medical theory and sharply detecting critical issues in a real clinical setting are entirely different realms. Recently, the case of a patient in their late sixties undergoing long-term dialysis brought a renewed sense of clinical vigilance and learning. 1. Presentation and Initial Evaluation The patient visited our clinic suffering from lower back pain, having been referred by a closely acquainted Korean medicine doctor to rule out any potential spinal fractures and evaluate their precise condition. Upon arrival, the patient was walking with the aid of a cane. Immediate and meticulous palpation of the spine was performed to check for localized tenderness or typical signs of fracture. Fortunately, no acute fracture signs were observed during the physical...