RESUMO
The records of 368 patients with bone tumours and tumour-like conditions presented to El Hadra University Orthopaedic Hospital over a three-year period were studied. Benign tumours constituted 30.2% and malignant tumours were 25.8% of cases. Tumours with variable behaviour comprised 9.5% of the studied cases. Metastatic tumours and tumour-like lesions comprised 12.2% and 22.3% of cases, respectively. The male to female ratio was 1:1. The highest age incidence was in the second and third decades of life. All bones were affected except for the carpal bones. The highest incidence was in the femur [36%] followed by the humerus and tibia [16% for each]. Nearly all types of the common bone tumours and tumour-like lesions were encountered. Osteochondroma was the commonest benign tumour while osteosarcoma was the commonest primary malignant bone tumour. Of the tumour-like lesions, simple bone cyst was the commonest. Benign tumours presented more commonly with swelling, while pain and swelling were more common with malignant tumours. Metastatic and tumour-like lesions presented more frequently with pathologic fractures