Fibrous Cortical Defect and Non-Osteogenic Fibroma

概要

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Recently we have experienced two cases of fibrocystic disease of bone.Case 1 A boy of thirteen complained of pain in both knees and a clinical diagnosis of Osgood Schlatter's disease was made. Radiographs revealed a lesion in the left tibia considered to be fibrous cortical defect. This lesion is subperiosteal. The histological picture was that of fibrous cortical defect.Case 2 A girl of twelve complained of pain in left knee. Radiographs revealed a lesion in the left tibia considered to be non-osteogenic fibroma. This lesion is endosteal. The histological picture was that of non-osteogenic fibroma. From accounts in our cases, there appears to be valid clinical distinction in that the fibrous cortical defect never gives rise to symptoms or signs whereas the non-osteogenic fibroma can do so by virtue of its size and pathological fracture. Radiologically there is a distinction in that the one tends to be subperiosteal, the other endosteal. Histologically there is little to distinguish the two. We belive that fibrous cortical defect is a local developement aberration and non-osteogenic fibroma is a beneign neoplasm.
西日本整形・災害外科学会の論文