Department of Orthopaedic Surgery, Kangwon National University Hospital, Chuncheon-si, Gangwon-do 200-722, South Korea.
Ann Diagn Pathol. 2013 Apr;17(2):207-9. doi: 10.1016/j.anndiagpath.2012.07.003. Epub 2012 Sep 15.
Nonossifying fibroma is developed in childhood and adolescence and is usually asymptomatic. It is typically arises in the metaphysis of long bone and migrates toward the diaphysis with growth. We present a very rare case of nonossifying fibroma involving metaphysis and epiphysis of the distal femur in a 20-year-old man. Nonossifying fibroma is a benign fibroblastic lesion, which is also termed benign cortical defect and fibroxanthoma. A nonossifying fibroma rarely causes problems and does not interfere with healing or growth. The lesions are usually asymptomatic. With growth and remodeling of the bone, the lesion typically disappears and is replaced with normal bone. However, the lesion may weaken the involved bone, causing fracture. The lesion typically arises in the metaphysis of long bones and may migrate toward the diaphysis with growth. There have never been reports of nonossifying fibroma involving epiphysis that we know of. We report a very rare case of nonossifying fibroma involving metaphysis and epiphysis in a young adult. Written, informed consent was obtained from the patient to publish this case report, including the images.
非骨化性纤维瘤发生于儿童和青少年时期，通常无症状。它通常发生在长骨的干骺端，并随着生长向骨干迁移。我们报告了一例非常罕见的累及股骨远端干骺端和骨骺的非骨化性纤维瘤病例，患者为 20 岁男性。非骨化性纤维瘤是一种良性成纤维细胞病变，也称为良性皮质缺损和纤维黄色瘤。非骨化性纤维瘤很少引起问题，也不会干扰愈合或生长。病变通常无症状。随着骨骼的生长和重塑，病变通常会消失并被正常骨骼取代。然而，病变可能会削弱受累的骨骼，导致骨折。病变通常发生在长骨的干骺端，并可能随着生长向骨干迁移。据我们所知，从未有过累及骨骺的非骨化性纤维瘤的报道。我们报告了一例非常罕见的累及年轻成人股骨远端干骺端和骨骺的非骨化性纤维瘤病例。已获得患者书面知情同意，同意发表本病例报告及其图像。
