Journal of the Korean Association of Oral and Maxillofacial Surgeons

The Korean Association of Oral and Maxillofacial Surgeons (대한구강악안면외과학회)
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THE USEFULNESS OF BONE SCAN FOR EVALUATING JAW BONE EXTENSION OF ORAL CANCER

구강암의 악골 침윤 평가에 있어서 골스캔의 효과

  • Park, Hong-Ju (Department of Oral and Maxillofacial Surgery, Dental Science Research Institute, College of Dentistry, Chonnam National University) ;
  • Ryu, Sun-Youl (Department of Oral and Maxillofacial Surgery, Dental Science Research Institute, College of Dentistry, Chonnam National University)
  • 박홍주 (전남대학교 치과대학 구강악안면외과학교실, 치의학연구소) ;
  • 유선열 (전남대학교 치과대학 구강악안면외과학교실, 치의학연구소)
  • Published : 2000.12.31
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Abstract

Purpose : The present study was carried out to determine the diagnostic usefulness of bone scan for evaluating jaw bone extension of oral cancer. Materials and Methods : Medical records, preoperative bone scans, computerized tomographic (CT) scans, conventional radiographs, and findings of histopathologic sections of twenty patients who had been treated for oral malignant tumors by a resection of mandible and soft tissue at Chonnam University Hospital from January, 1994 to September, 1999 were analyzed. Results : In 13 cases which showed histopathologically positive, preoperative bone scans were positive in 12 (92.3%) and false negative in 1 (7.7%). Preoperative CT scans were positive in 9 (69.2%) and false negative in 4 (30.8%) of the 13 cases. Preoperative conventional radiographs were positive in 8 (61.5%) and false negative in 5 (38.5%) of the 13 cases. In 7 cases showing negative histopathologic findings, 1 (14.3%) was in CT scans and 2 (28.6%) were false positive in preoperative conventional radiographs. Conclusion : These results suggest that bone scan is more sensitive and reliable method for evaluating jaw bone extension of oral cancer than conventional radiographs or CT scans.

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