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Relationships between plain-film radiographic patterns and clinicopathologic variables in AJCC stage II osteosarcoma
Min Suk Kim1, Soo-Yong Lee, Wan Hyeong Cho
1Department of Pathology, Korea Cancer Center Hospital, 215-4, Gongneung-dong, Nowon-gu, Seoul, 139-706, Korea.
Objective:
In this retrospective study, we assessed the plain-film radiographic patterns of American Joint Committee on Cancer (AJCC) stage II osteosarcoma and analyzed the relationship between these patterns and clinicopathologic variables.
Materials And Methods:
We retrospectively reviewed 347 patients with AJCC stage II osteosarcoma who were treated at our institute. Patients were divided into three groups based on radiographic patterns, i.e., osteoblastic, osteolytic, and mixed. Fisher's exact chi-square test was performed to analyze correlations between radiographic patterns and clinicopathological variables.
Results:
One hundred and eighty-eight patients had an osteoblastic tumor, 101 had an osteolytic tumor, and 58 had a mixed tumor. Tumors with an osteoblastic pattern showed a tendency to have the following characteristics: AJCC stage II-B, osteoblastic or chondroblastic subtype, and no pathologic fracture. Conversely, osteolytic tumors were frequently of AJCC stage II-A, had a fibroblastic or rare subtype, and were associated with a pathologic fracture. Finally, mixed tumors were frequently found in men. No survival difference was found according to radiographic pattern.
Conclusions:
Plain-film radiographic patterns were found to be related with clinicopathological features. We believe that it could be used to provide valuable information for treatment decision-making in cases of high-grade extremity osteosarcoma.
