Introduction: There are many entities which manifest radiographically as causes for low back and leg pain. I will attempt to review systematically some of the more common clinically encountered abnormalities seen on plain film radiographic studies. Additionally, I will introduce, with exemplary case studies, supplementary imaging modalities such as isotopic bone scans, vascular studies and computerized tomography. To facilitate a systematic approach to a given radiographic abnormality I will present a categorical system based on the seven categories of bone disease: (i) postural, variants, congenital; (ii) arthritide; (iii) trauma; (iv) vascular; (v) infection; (vi) neoplasia; (vii) nutritional, metabolic, endocrine.
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