A case of osteoblastoma arising in the mandible of a child
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- KITAJIMA Shoichiro
- Department of Dentistry and Oral Surgery, Konan Kosei Hospital
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- YASUI Akio
- Department of Dentistry and Oral Surgery, Konan Kosei Hospital
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- MARUO Hisanobu
- Department of Dentistry and Oral Surgery, Konan Kosei Hospital
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- NIWA Keiji
- Department of Dentistry and Oral Surgery, Konan Kosei Hospital
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- KAKUTA Sadanobu
- Department of Dentistry and Oral Surgery, Konan Kosei Hospital
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- FUKUYAMA Ryuichi
- Department of Diagnostic Pathology, Konan Kosei Hospital
Bibliographic Information
- Other Title
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- 小児の下顎骨に発生した骨芽細胞腫の1例
- ショウニ ノ カガクコツ ニ ハッセイ シタ コツガ サイボウ シュ ノ 1レイ
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Abstract
Osteoblastoma is a rare bone tumor that involves abnormal bone and osteoid tissue formation. It was classified as an intermediate( locally aggressive) tumor by the WHO in 2013. We describe a case of mandibular osteoblastoma in a 9-year-old boy whose chief complaint at initial consultation was facial asymmetry. Radiographic examination showed a well-defined radiopaque region measuring approximately 26 × 21 mm in diameter that was partially surrounded by a radiolucent area. In the right side of the mandible, the second premolar was impacted by the tumor. Biopsy findings suggested an osteoblastic neoplasm with an MIB-1 index of about 1%. Based on these findings, we planned to perform curettage of the tumor. A histologic examination of the excised specimen revealed it was mainly composed of abundant connective tissue showing active angiogenesis and osteoid bone covered with osteoblast-like cells, thus confirming our initial diagnosis. The postoperative course was uneventful. One year 8 months after the operation the impacted tooth had erupted spontaneously. This case suggests that it might be feasible to preserve permanent teeth impacted by an osteoblastoma.
Journal
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- Japanese Journal of Oral and Maxillofacial Surgery
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Japanese Journal of Oral and Maxillofacial Surgery 61 (6), 350-354, 2015
Japanese Society of Oral and Maxillofacial Surgeons
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Keywords
Details 詳細情報について
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- CRID
- 1390282681507451520
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- NII Article ID
- 130005105660
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- NII Book ID
- AN00189163
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- ISSN
- 21861579
- 00215163
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- NDL BIB ID
- 026576608
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed