2001 年 50 巻 4 号 p. 1114-1118
The development of bone cysts in hemodialysis patients is common, but no massive bone cysts of the condylus fumeri medialis, and the condylus tibiae medialis have been reported. This report describes a 70-year-old woman with a history of hemodialys for 23 years. She presents with a large bone cyst of the condylus fumeri medialis, and the condylus tibiae medialis. Arthroscopic synovectomy, curettage of the cyst, and iliac bone graft were performed. The inflammatory synovium discovered within the cyst was positive for β-2 microglobulin staining.