Quotation from: Manual of SurgeryWritten by: Alexander Miles and Alexis Thomson |
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_X-ray appearances in periosteal tubercle_: the surface of the cortical bone in the area of disease is roughened and irregular by erosion, and in the vicinity there may be a deposit of new bone on the surface, particularly if a sinus is present and mixed infection has occurred; in _syphilis_ the shadow of the bone is denser as a result of sclerosis, and there is usually more new bone on the surface--hyperostosis; in _periosteal sarcoma_ there is greater erosion and consequently greater irregularity in the contour of the cortical bone, and frequently there is evidence of formation of bone in the form of characteristic spicules projecting from the surface at a right angle.
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