Revised histopathological classification of odontogenic tumors by WHO and its allied epithelial cysts

• TAKEDA Yasunori

  Department of Oral Pathology, School of Dentistry, Iwate Medical Universit

• TAKATA Takashi

  Department of Oral Maxillofacial Pathobiology, Graduate School of Biomedical Science, Hiroshima University

Bibliographic Information

Other Title

• ＷＨＯによる歯原性腫ようの新たな組織分類とそれに関連する上皮性嚢胞について
• WHO ニ ヨル シ ゲンセイ シュヨウ ノ アラタ ナ ソシキ ブンルイ ト ソレニ カンレン スル ジョウヒセイノウホウ ニ ツイテ

Abstract

Revised histcpathologicacll assificatioofn o dontcgenic tumors by World Health Organization (WHO) has been published in 2005 by Internaticna Aig ency fcr Research on Cancer (IARC).In this classificaticmno, st malignant tumors are generallyc onsidered the counterpartso fbenign odontogenic tumors. Odontogenic carcinomas are classifieidn tom etastasizing (malignant) ameloblastoma, ameloblasticc arcincmas, p rimary intraosseous squamcus cellc arcinomas (sclidt ype, d erived frcm keratocystico dcntogenic tumor and derived frcm odcntogenic cysts), c learc ello dontogenic carcinoma and ghost cello dcntogenic carcinoma. Odontogenic sarcomas are ameloblasticf ibrcsarccma and amelcblasticf ibrc-odcntcsarccma B.e nign tumcrs are classifieidn tcf ollcwingf our categories; 1) odontogenic epithelium with mature, fibrous strcma without odcntogenic ectcmesenchyme, 2) odontogenic epithelium with odontogenic ectomesenchyme with or without hard tissue formation, 3) mesenchyme and/or odcntogenicectomesenchyme with or without odcntcgenic epithelium, and 4) bone-related lesions. Category 1 is composed of various types of ameloblastoma, squamous odontogenic tumor, calcifyingepitheliaold ontogenic tumor, adenomatoid odontogenic tumor, and keratocystico dontogenic tumor named odontcgenick etarccysti n previcus classificatiCcan.t egcry 2 consistso f ameloblasticf ibroma, a melcblasticf ibrcdentinoma, ameloblasticf ibro-odontoma, o dontomas, odontoameloblastoma, calcifyingc ystico dcntogenic tumor and dentinogenicg hcst cellt umcr.Both calcifyincgy stico dontogenic tumor and dentinogenicg host cellt umor were previcuslyn amed calcifyinogd cntcgenic cyst.O dcntogenic fibrcma, odcntcgenic myxcma and cementoblastcma are classifieidn to category 3. Category 4 is composed of ossifyingf ibroma, f ibrousd ysplasia, o sseous dysplasia, centralg iantc elll esicn, c herubism, aneurismal bone cysta ndsimple bone cyst.<BR>Although odontogenic epitheliacly stsi s not included in the revised WHO's histologicacll assificatioofn o dontogenic tumors, terminologicaplr oblems of a few cystsc lassifieidn 1992 are describedi n the present paper.

Journal

• Japanese Journal of Oral and Maxillofacial Surgery

  Japanese Journal of Oral and Maxillofacial Surgery 52 (2), 54-61, 2006

  Japanese Society of Oral and Maxillofacial Surgeons

Keywords

• odontogenic tumors
• revised WHO histological classificadon
• malignant tumors
• benign tumors
• odontogenic epithelial cysts

Details

• CRID: 1390001206533655936
• NII Article ID: 10018860344
• NII Article ID: 10019548693
• NII Book ID: AN00189163
• DOI: 10.5794/jjoms.52.54
• ISSN: 21861579
• ISSN: 00215163
• NDL BIB ID: 7852778
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7852778
• Web Site: https://search.jamas.or.jp/link/ui/2006122269
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed