Imaging Pediatric Bone Tumors.

Primary bone tumors are the sixth most common type of tumor diagnosed in children. When evaluating bone lesions, specific characteristics-tumor margin, pattern of bone destruction, periosteal reaction, presence or absence of soft tissue mass, lesion location, and type of matrix present-must be considered to distinguish between benign and malignant tumors. Radiography is the most valuable diagnostic tool for initial diagnosis of bone tumors; however, computed tomography and magnetic resonance imaging are vital for establishing tumor invasion and staging of malignant lesions.