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A 19 year old male worker in a transport company and engaged in manually lifting heavy bags for the past three years, presented to the Orthopaedic unit with recurrent pain in the right wrist. There was no past history of injury to either wrist. A three phase bone scan revealed increased vascularity and intense radiotracer uptake in the lunate bone. X-ray of the right wrist joint revealed a dense lunate bone suggestive of Kienbock's disease (Avascelar necrosis of lunate bane). This report highlights the role of three phase bone scan in the management of Kienbock's disease.