Pictorial review: ultrasonography of primary bone tumours.

We present our experience with the use of ultrasonography in the assessment of suspected primary or recurrent bone tumours of the appendicular skeleton and pelvis in 73 patients. Ultrasound can effectively assess the extraosseous component of malignant and aggressive benign lesions and those tumours arising from the surface of the bone. Periosteal reaction, cortical destruction, pathological fracture, matrix mineralization, fluid-fluid levels and involvement of the neurovascular bundle are all identified. Despite this, we could not identify any advantage of ultrasound compared to plain radiography or magnetic resonance imaging in diagnosis and local staging. However, ultrasound was found to be of great value in guiding percutaneous needle biopsy.