An imaging overview of primary tumors of the spine: Part 2. Malignant tumors.

Primary malignant tumors of the spine are unusual, with morphologic characteristics that often lack the specificity required to render a definitive diagnosis. Because metastatic disease and leukemia are far more common, they merit reporting as well. The imaging appearances of malignant tumors of the spine provide key diagnostic information regarding the aggressive or nonaggressive behavior of such neoplasms. The addition of clinical information, including the age of the patient and the anatomic position of the lesion, is also essential. This article reviews and illustrates the imaging features of several malignant spinal tumors that allow formulation of a reasonable diagnosis.