2025-11-272025-11-27http://hdl.handle.net/2263/106454Clinical history : A 13 year old boy with severe pain in the left leg had, on X-ray examination, a translucent bone lesion of the left femur below the lesser trochanter.The lesion was removed surgically.Diagnosis: Osteoid osteomaM690: Part of left femur below lesser trochanter.