Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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Adenomatoid Odontogenic Tumor in the Posterior Mandible of a Young Child : A Case Report

하악 유구치부에서 발생한 선양 치성 종양의 증례 보고

  • Sim, Dohee (Division of Pediatric Dentistry, Department of Dentistry, Ewha Womans University Mokdong Hospital) ;
  • Mah, Yonjoo (Division of Pediatric Dentistry, Department of Dentistry, Ewha Womans University Mokdong Hospital)
  • 심도희 (이화여자대학교 의과대학 목동병원 소아치과학교실) ;
  • 마연주 (이화여자대학교 의과대학 목동병원 소아치과학교실)
  • Received : 2019.07.16
  • Accepted : 2019.09.11
  • Published : 2020.02.29
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Abstract

Adenomatoid odontogenic tumor (AOT) is a rare benign odontogenic jaw lesion. It usually occurs in the anterior maxilla and is mostly related to impacted canines in teenagers. A 3-year-old girl was referred from a local dental clinic due to delayed eruption of the right primary mandibular 2nd molar. There was no history of pain or swelling. Radiography revealed a large radiolucency lesion with radiopacities around the unerupted right primary mandibular 2nd molar. Surgical enucleation with extraction of the right primary mandibular 2nd molar and surgical biopsy were performed. Based on the clinical and radiological findings, this lesion was defined as an ameloblastic fibro-odontoma which often develops in the mandible of adolescents. However, this lesion was diagnosed as AOT from the results of the histological examination. This report aimed to present a rare case of AOT in the posterior mandibular area in a very young patient.

선양 치성 종양(adenomatoid odontogenic tumor)은 소아에서 드물게 발생하는 악골의 치성 기원의 종양이다. 보통 10대에서 상악 견치부분에 발생한다. 이 증례는 3세 여환으로 하악 제2유구치의 미맹출을 주소로 개인병원에서 의뢰되었다. 부종과 통증의 병력은 없었다. 파노라마 사진에서 매복된 하악 제2유구치의 주변으로 방사선투과상 병소가 관찰되었고, Cone Beam Computed Tomography (CBCT) 에서는 골팽창과 함께 방사선 불투과상 병소들이 관찰되었다. 하악 제2유구치의 발치와 함께 병소의 적출과 조직 생검이 시행되었다. 술 후 1년 검사에서 재발을 보이지 않았다. 임상적, 방사선학적 검사를 통해 이 병소는 소아 청소년의 하악 구치부에서 호발하는 법랑모세포 섬유치아종(Ameloblastic fibroodontoma)로 진단되었다. 하지만 생검의 결과를 통해 이 병소는 선양 치성 종양으로 확진 되었다. 이 증례 보고는 매우 어린 나이에 하악 유구치에 발생한 흔하지 않은 선양 치성 종양 증례를 기술하고 있다.

Keywords

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