Is there a dose-effect relationship for the treatment of symptomatic vertebral hemangioma?
Rades. IJROBP; 2003:55:178 Radiologic examinations contribute to the diagnosis. On plain X-ray films, the so-called honeycomb appearance or coarse vertical striations can be observed, if at least one-third of the vertebral body is involved. Sometimes compression fractures can be seen. The CT scans may show the so-called polka dot appearance representing axial cuts caused by thickened vertical trabeculae. MR imaging is helpful for the differentiation between intraosseous (nonevolutive) and extraosseous (more frequently associated with symptomatic lesions) hemangioma. Because of a higher content of fat tissue, intraosseous lesions show an increased signal on T1- and T2-weighted images. Extraosseous lesions contain only little fat and show an isointense signal on T1- and an increased signal on T2-weighted images. Symptomatic vertebral hemangiomas are rare. Onset of symptoms most frequently occurs in the fourth or fifth decade of life. The relation of female to male ranges between 2:1 and
