多発性肺転移を伴った巨大な下顎エナメル上皮癌の1例

• Published in: 日本口腔外科学会雑誌 Vol. 58; no. 3; pp. 137 - 141
• Main Authors: 戸塚, 靖則, 大廣, 洋一, 進藤, 正信, 小野, 貢伸, 足利, 雄一, 佐藤（栗林）, 和代
• Format: Journal Article
• Language: Japanese
• Published: 社団法人 日本口腔外科学会 20.03.2012
• Subjects: エナメル上皮癌; 二次型; 多発性肺転移
• ISSN: 0021-5163; 2186-1579
• DOI: 10.5794/jjoms.58.137

We describe a large ameloblastic carcinoma of the mandible with multiple pulmonary metastases. The patient was a 62-year-old woman. In March 1994, she underwent enucleation of a tumor in the anterior part of the mandible at another hospital. The histopathological diagnosis was a typical ameloblastoma. She was lost to followup soon after the operation. In March 2008, she was referred to Hokkaido University Hospital. She had a large hemorrhagic tumor, which projected outside of the mouth. Chest radiography revealed many nodular opacities in both lung fields. In May 2008, we performed a segmental mandibulectomy to improve her quality of life. The histological diagnosis was an ameloblastic carcinoma-secondary type, intraosseous. There has been no sign of tumor recurrence for 2 years postoperatively.