| Two Cases of malignancy Developed from Large Tumors of the Head and Neck |
| Gi Ryoung Kim, MD, Ki Woo Paik, MD, Hee Nam Kim, MD, and Jai Sun Kim, MD |
| Department of Otolaryngology, Yonsei University College of Medicine, Seoul, Korea |
| 악성변화를 일으킨 거대한 비인강 및 상악종양의 2례 |
| 김기령 · 백기우 · 김희남 · 김재선 |
| 연세대학교 의과대학 이비인후과학교실 |
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| ABSTRACT |
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Recently, we have still experienced a lot number of malignancy developed from benign cases in spite of the advancement in the field of
oncologic research. The author experienced 2 cases of malignancy developed from large tumors from nasopharyngeal fibroma and maxillary fibrous dysplasia each other as time goes by, and clinicopathologically reviewed the literature.
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