日本口腔外科学会雑誌
Online ISSN : 2186-1579
Print ISSN : 0021-5163
ISSN-L : 0021-5163
症例報告
下顎骨中心性に発症した線維性偽腫瘍の1例
岸 裕子根岸 明秀信澤 愛子山口 徹笹岡 邦典横尾 聡
著者情報
キーワード: 偽腫瘍, 顎骨中心性腫瘍
ジャーナル フリー

2012 年 58 巻 2 号 p. 57-61

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Pseudotumor with fibrous proliferation is a rare benign nonneoplastic lesion in the oral region. We report a case of intraosseous fibrous pseudotumor of the mandible. A 50-year-old woman was referred to our university hospital to undergo further evaluation of a radiolucent lesion between the lateral incisor and canine of the right mandible. At presentation, no swelling was found in the alveolus of the anterior region of the mandible. A panoramic X-ray photograph revealed a radiolucent lesion causing root separation of the lateral incisor and canine. A computed tomography scan revealed mild bone swelling, a thinned cortex at the labial side of the mandible, and a low-density mass. Histopathological examination of a biopsy specimen suggested fibrous overgrowth. The lesion was intraorally extirpated under general anesthesia. Histopathological examination of the surgical specimen revealed high-density fibrous proliferation without dysplasia. There was virtually no lymphocyte infiltration. Histopathologically, the lesion was diagnosed to be a fibrous pseudotumor. No recurrence has occurred, and bone regeneration at the extirpated region is good 3 years after surgery.

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© 2012 社団法人 日本口腔外科学会
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