First Case Report of Cholesterol Granuloma of Femur
Abstract Introduction: Cholesterol granuloma (CG) is a special type of granulation tissue reaction. It is a very rare benign lesion with swelling growth, in which there are a large number of cholesterol crystals and foreign body giant cells. A small amount of literature reports that it occurred in the middle ear or mastoid area. There has been no report of CG of the femur.Methods: A 74-year-old woman suffered from pain and discomfort in the upper right knee for 10 years, which aggravated for 10 days. He was diagnosed with CG of the right femur in our hospital, and was treated with surgery. Results: During the operation, a large amount of yellow-brown oily crystal structure was found, and the pathology after the operation was confirmed as CG. The postoperative follow-up was 3 months, and the treatment effect was satisfactory.Conclusion: CG of the femur is an extremely rare benign lesion, and there is no relevant report. Surgical treatment can remove the diseased tissue and provide effective treatment results.