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Background: Bone tumors remain a daunting challenge to orthopedic surgeons. The challenge is heightened in developing countries due to limited diagnostic and therapeutic facilities as well as due to ignorance. The published literature on this subject is sparse in our environment. Objective: To determine the pattern of bone tumors including their relative frequencies, age and sex distributions, anatomical sites of occurrence and clinico-pathological characteristics as seen in a tertiary care hospital of south India. Materials and Methods: This is a retrospective review of all the histologically confirmed bone tumors seen at JSS Medical College and Hospital, Mysore over an 8 year period: 2002 to 2009. Results: A total of 117 patients (aged 5 to 82 years) with a mean of age of 26.87 years were studied. Seventy-six patients (64.96%) were males and 41 (35.04%) were females. The peak age incidence for primary bone tumors was in the age group of 11-20 years and that for metastatic bone tumors was more than 60 years. Sixty-seven (57.26%) of the tumors were benign. Among these, osteochondroma was the most common, accounting for 26 cases (22.22%) followed by Giant cell tumor (24 cases, 20.51%). Osteosarcoma accounted for 35.14% (13 cases) of all the primary malignant tumors in the study. Lower end of femur was the most common site for primary bone tumors and accounted for 30 cases (25.64%) followed by upper end of tibia and fibula (24 cases, 20.51%). The most common site for metastatic bone tumors was upper end of femur including hip joint followed by spine. Conclusion:  This study showed that primary bone tumors are mainly benign, occurred predominantly in the second decade of life with a male preponderance. Osteochondroma and osteosarcoma are the most common benign and primary malignant bone tumors, respectively. The most common primary foci for metastatic bone tumor are from the respiratory tract.

Bone tumors in a tertiary care hospital of south India: A review 117 cases