生検後に消失した下顎頭骨好酸球肉芽腫の1例

• Published in: 日本口腔外科学会雑誌 Vol. 59; no. 12; pp. 770 - 775
• Main Authors: 大村, 元伸, 大野, 隆之, 中岡, 俊貴, 林, 富雄, 野村, 六也, 風岡, 宜暁
• Format: Journal Article
• Language: Japanese
• Published: 社団法人 日本口腔外科学会 20.12.2013
• Subjects: 下顎頭; 好酸球肉芽腫; 自然寛解
• ISSN: 0021-5163; 2186-1579
• DOI: 10.5794/jjoms.59.770

Eosinophilic granuloma of bone is a lesion of unknown cause that shows abnormal proliferation of histiocytes and infiltration of eosinophils. In the oral cavity, this lesion most commonly affects the mandible. This report describes a case of monostotic eosinophilic granuloma in the mandibular condyle. The patient of the 38 years old woman was given a definitive diagnosis of eosinophilic granuloma of bone on the basis of open biopsy findings. One year 3 months after the diagnosis, panorama X-ray films and magnetic resonance imaging revealed satisfactory formation of new bone, suggesting spontaneous remission of the lesion. As previously reported, monostotic eosinophilic granuloma of bone can heal spontaneously. However, follow-up is necessary after definitive diagnosis on biopsy because monostotic eosinophilic granuloma of bone may evolve into multiple lesions.