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Summary Adenomatoid odontogenic tumor (AOT

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   Adenomatoid odontogenic tumor originated in the periodontal ligament Oral oncology Extra 42,268-271(2006)

     

     

     

       Bruno correia Jham et al.

     

     

     

       Department of Oral Surgery, Oral Medicine and Oral Pathology, School of Dentistry, Brazil

    

    

    

           Intern E    

   

   

   

     







 Summary

Adenomatoid odontogenic tumor (AOT)  hamartomatous    ,  non-invasive        

 ! " # $ % & ' ( )* + ,

follicular-extrafollicular-peripheral

./ 0 1 2 3 4 5& 6 ( * + AOT)7 8 )originperiodontal ligament

9 : ; < = > ? @ gingival swellingA B C )D E F Gperiodontal ligament H I J K L M  clinical diagnosisperipheral ossifying fibromaN O P Q R P C D E F GAOT.S T < 115U )V W X Y F G recurrent)Z .

Introduction

Adenomatoid odontogenic tumor (AOT)[ \ odontogenic tumors) 2.2–13%]

F .^ _ & ` )7 a b 11c20d e f & g 7 h i 30d " j k l m

F  n & o  p : ,mq1:2r ' F  .anterior maxilla

1. follicular- central intrabony lesion associated with unerupted tooth (70s)

2. extrafollicular- intra-osseous lession but unrelated to an unerupted tooth, and represents 25% of all AOTs

3. peripheral- intra-osseous lesion,.tgingival tissueu < )& g ( )* + v w

3 4 x y z { )7 8| 188

" j % * + )AOT} ~ . €  j ‚ ƒ „ … Gj X Y †  ˆ

Case report

15d o ‰ Š : ; .2005^ ‹ U Œ Ž   the Stomatology Clinic of the UniversidadeFederal de Minas Gerais (UFMG) ‘ ’ 

Chief complaint:

A 9-month asymptomatic gingival swelling.

/ : ; .‘ ’ w “ ” S • – — ˜ ™ 3^ e š

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› œ D E :

(A)ƒ „ j ž L  Ÿ   ¡ ¢ £ ¤¥ ¦ gingiva§ ¨ © ª p 2cm)«

.¬ ­ anterior maxillary gingival ¯ ± ¨ ² ³ µ

(B)A B C ! " · PDL¸ ¹ » ¼ u l ½ ¾ H I K ) $

(C).N O ¿ Q )i À Á F 57 Ã Ä Å .periodontal ligamentf l Æ $ tooth12 ­ È L É Ê 

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(D)ƒ „ j " curette¿ Q k Ë Ì excisional biopsy.

(A) €  j F Godontogenic epitheliumÍ C J ‚ Î J 4 G (haematoxylin–eosin stain.200Ï Ð  ).

(B)$ Î J )odontogenic epithelial cells ? Ñ Œ cuboidal cellÒ Ó

splindle-shaped cells $ Õ eosinophilic J } Ö × )H I K L 4 G(haematoxylin–eosin stain; 400x magnification).

(C)} Ö × H I K L ¤½ duct-like arrangement were present (arrow heads) (haematoxylin–eosin stain; 400 xmagnification).

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(A)” i 115U V W ƒ „ j k Ø F G Ù F )Z (B)— ' ) periodontal ligament €

Clinical diagnosisperipheral ossifying fibroma.

Finial diagnosis : extrafollicular AOT

Discussion

AOT % } Ú ) clinicotopographic forms: follicular, extrafollicular and peripheral

v w  5case         ƒ „ XÛ‚ Ü Ý N O Á X F G| Ä Å .periodontal ligament\ "  extrafollicular AOT Y ß + )Xۅ G| Æ $ ¥ ¦ É

» Ê  u Y É à á .ƒ „ … â j ã & ä peripheral AOT‚ ä å æ ­

gingiva)fibroma-epulis\ " Â 5caseÚ > è intra- osseous¤peripheral AOT

) â 

extrafollicular AOT! é F  .45} Ú ) ê

above, between, superimposed at midroot level, or superimposed at apex level of erupted teeth. Philipsen et al.

ë  ì í \ )AOTX … î )À ï ð \ * + AOT ™ ê ñ ,

ò ó )N O P Q ‰ j curettage õ j 7505casee Á | 3 F u  ö 3

4 )case.N O ÷ Q e R V W 115U ø Y Ù F )Z ù

v w AOT — originû ü ý odontogenic tumor

þ Þ þ )follicular type AOT! é tdentigerous cyst

Á )odontogenic epitheliumu < Dental lamina remnantsø è  F #   

 • · ½   ‘ F $  peripheral type of benign odontogenic tumor.

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 ‘ ! é $ extrafollicular AOT

           



   AOT origin 



         epithelial odontogenic



     ectomesenchyme odontogenic



 ! ! ! ! mixed odontogenic



 " " " "

# $# $# $# $

!!!!

% & ' ( ) * + ' ,% & ' ( ) * + ' ,% & ' ( ) * + ' ,% & ' ( ) * + ' , ) % , * - . / 0 1 ) * + % & ) & 2 - 3 * ) 4 ' ' 5 5 ' 3 * / & * + ' / 2 / & * / 6 ' & ) 3 ) % , * - . / 0 1 ) * + % & ) & 2 - 3 * ) 4 ' ' 5 5 ' 3 * / & * + ' / 2 / & * / 6 ' & ) 3 ) % , * - . / 0 1 ) * + % & ) & 2 - 3 * ) 4 ' ' 5 5 ' 3 * / & * + ' / 2 / & * / 6 ' & ) 3 ) % , * - . / 0 1 ) * + % & ) & 2 - 3 * ) 4 ' ' 5 5 ' 3 * / & * + ' / 2 / & * / 6 ' & ) 3  ' 3 * / . ' 7 ' & 3 + 8 . '

' 3 * / . ' 7 ' & 3 + 8 . '' 3 * / . ' 7 ' & 3 + 8 . '

' 3 * / . ' 7 ' & 3 + 8 . ' . ) 9 ' 2 / 2 / & * / 6 ' & ) 3 & ' / ( , % 7 .. ) 9 ' 2 / 2 / & * / 6 ' & ) 3 & ' / ( , % 7 .. ) 9 ' 2 / 2 / & * / 6 ' & ) 3 & ' / ( , % 7 .. ) 9 ' 2 / 2 / & * / 6 ' & ) 3 & ' / ( , % 7 . 

           

: ::

:      AOTcompletely benign,               ?





                                     





                       !              





 ! ! ! !





 " " " " "       #  

# $# $# $# $

""""

/ 0 % , ; . % 9 ) , , / 5 % 3 ) % , ( % * + / , / 6 8 (/ 0 % , ; . % 9 ) , , / 5 % 3 ) % , ( % * + / , / 6 8 (/ 0 % , ; . % 9 ) , , / 5 % 3 ) % , ( % * + / , / 6 8 (/ 0 % , ; . % 9 ) , , / 5 % 3 ) % , ( % * + / , / 6 8 ( < :=< :=< :=< := 

















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