The authors analyze problems arising in differential diagnosis of benign spinal tumors not adequately described in available literature. The most characteristic x-ray symptoms of rare spinal tumors are presented. Methods of radiologic investigation such as polipositional roentgenography, tomography, roentgenography with direct image amplification are described in detail. A total of 102 observations of benign spinal tumors are analyzed: osteoblaclastomas responsible for 14.7% of osteoblastoclastomas, angiomas responsible for 66.7% of cases, osteochondroma occurring in 6.7% of cases, chordomas and osteoid ostema occurring in 10.7 and 1.0% of cases, respectively.
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