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General Data:Name: ? X X Chart No.: 2935590-6Ward No.: B108
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1. Clinical Pathological Conference---Compound Odontoma
Wu Cheng-Hsien, Division of Oral & Maxillofacial Surgery, Department of Dentistry, V.G.H.-Taipei
2. General Data:
Name: ? X X
Chart No.: 2935590-6
Ward No.: B10816
Sex: Male
Birthday: 74/02/08
Marital status: Single
Date of admission: 89/06/19
Occupation: Student
3. Chief Complaint:
Refer from LDC for removal of radiopaque lesion over Rt lower mandibular region.
History of Present Illness:
According to the statement of this 15 y/o boy, a few days ago , he went to LDC for regular dental check-up and scaling. The Dr. take the apical film & found this odontoma and suggested him to visit VGH OS OPD for help. So he admitted our ward B108-16 for surgery intervention for odontoma removal under GA.
4. Past Medical/Dental History:
General: DM(-) , HTN(-) , Heart disease (-)
Allergies: food and drug(-)
Trauma: significant injuries (-), blood transfusion (-)
Social and Personal History:
Tobacco: Nil
Alcohol: Nil
Betel quid chewing: Nil
Family History:
Family lipoma history , and now there is a lipoma over his right arm.
Review of Systems:
No specific finding
5. OMS condition:
Extraoral: No facial asymmetry
No LAP
Intraoral: retained deciduous tooth: 83
Pano. Finding:
>Impaction:18,28,38,48
>A well-defined radiopaque-radiolucent lesion with radiolucent encapsulation about 1.5x1.5cm over 42-45 apical area
>33: ectopic eruption
13. Odontoma
General features:
Mixed odontogenic tumor; epithelial and mesenchymal origin A kind of harmatoma
Etiology:
Result from an extraneous bud of odontogenic epithelial cells from the dental lamina
Epidemiology:
The most common odontogenic tumor(67%); Compound> Complex(2:1)> ameloblastic odontoma> ameloblastic fibroodontoma
14. Age:
Occur in the 2nd decade of life (most common in childen and young adults)
Sex:
M~F (68% of the complex type occur in women)
Site:
Compound---incisor-canine area of the maxilla; Complex-- 1st and 2nd molar of the mandible
Size: 1-3cm
Progress: Non-aggressive
Symptoms:
Delayed eruption of permanent tooth
15. Ameloblastic odontoma (AO; odontoameloblastoma)
Simultaneous occurence of an ameloblastoma and complex odontoma
Clinical similarities to both the odontoma (age at time of diagnosis) and ameloblastoma (location, expansion and recurrent rate)
aggressive; rare; benign
More often in children early in the 2nd decade of life; ?>?; mandible>maxilla
Bony expansion; cortex destruction; teeth displacement; mild pain
16. Ameloblastic Fibroodontoma Contain cords & nests of odontogenic epithelium & some calcified odontogenic tissue in a myxomatous stroma
benign, well-capsulated
?>?; most often in the first two decades of life
mandible>maxilla; most in the premolar-molar area
pericoronal to an imbedded tooth
radiolucent-->radiolucent-radiopaque
D.D.: COC; AOT; CEOT; odontoma
Management: surgical enucleated