Frequency of Primary Bone Tumors Pathology in Kurdistan Province, from 1996 to 2000

Bone tumors are uncommon and have two groups, primary and secondary tumors. The later consists of metastatic tumors and it is more common than the primary tumors. Bone tumors are rare in body. This study is designed to determine the frequency of bone tumors in Kurdistan. This study was descriptive and documented data were collected from governmental and private centers from 1996 to 2000 in Kurdistan. There were 190 files and necessary data consist of histopathologic types of masses, age, sex and location of lesions were analyzed with descriptive analysis. From 190 primary bone tumors 8.4% were malignant, 69.5% were benign and 22.1% were tumor like lesions. Osteochondroma was the most frequent in benign tumors (57.6%) and its frequency among all of the bone tumors was 40%. In malignant tumors osteosarcoma and giant cell tumor have the most frequency (25%). Among all pathologic types consist of malignant, benign and tumor like lesions, the frequency for male was more than female. Most of bone masses that were been biopsy are benign and malignant tumors are rare.