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17 Cards in this Set
- Front
- Back
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epithelial
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ameloblastoma *MC epi 'true' tumor
adenomatoid odont tumor Calcifying Epithelial odont tumor (Pindborg) Squamous Odont Tumor |
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Mixed Tumors (epi & mesenchymal)
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ameloblastic fibroma
ameloblastic fibro-odontoma ameloblastic fibrosarcoma odontoma *MC mixed tumor |
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Mesenchymal
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central odont fibroma
peripheral odont fibroma odontogenic myxoma (myxosarcoma) *MC of all (but a harmartoma, not true tumor)* |
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ameloblastoma
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33 yo
*MC - mandible (ascending ramus & posterior body) maxillary - molar region 80% of maxillary unlimited growth (cortical plate thinning) 'soap bubble' or 'honneycomb' pattern 80% Multilocular > Unilocular cross midline reverse nuclear polarity (except plexiform-unicystic pattern) |
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ameloblastoma (solid & multicystic)
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islands of tumors
peripheral columnar cells, central stellate reticulum-areas surgical removal (maxilla small tumors = one opportunity for surgical cure in maxilla) lifelong follow-up |
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Ameloblastoma (Unilocular, unicystic, type)
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*MC impacted Mandibular molar
3 histo patterns (luminal, intraluminal, mural) Conservative tx |
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Ameloblastomic Carcinoma
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Cellular Malignant features REQUIRED
metastasis NOT REQUIRED poor prognosis opposite of malig ameloblastoma |
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Malignant Ameloblastoma
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cellular malignant features NOT REQUIRED
metastasis REQUIRED survival possible opposite of ameloblastic carcinoma |
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Adenomatoid Odontogenic Tumor (AOT)
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females, 20s yo, DUCT-like system
surrounds crown & portion of root maxilla (unerupted canine) enucleation only - NO recurrence thick fibrous capsule |
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calcifying epithelial odontogenic tumor (Pindborg, CEOT)
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mandible (molar region)
multilocular RL 'Liesegang Rings' as matures ROs 'driven snow' congo red |
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Squamous odontogenic Tumor (SOT)
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focal alveolar bone loss stimulates periodontal disease
'tooth floating in air' ddx: Langerhans, Local aggressive periodontitis Misdiagnosis: ameloblastoma acanthomatous type, or SCC arising or Metastatic Ca to the jaw |
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ameloblastic fibroma
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first two decades
posterior mandible male Unilocular or Multi (NO ROs) obstruct eruption of developing teeth highly cellular FCT tx: conservative en bloc resection Prog: inadequate tx = recur --> Ameloblastic Fibrosarcoma |
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ameloblastic fibro-odontoma
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10 yo avg age
mandible (posterior region) unilocular RL w/ variable amt. of calcified tooth mater. identical to ameloblastic fibroma tx: conservative curettage |
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ameloblastic fibrosarcoma
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30s yo
mandible radio: indistinguishable from osteosarc or ostemyelitis - irreg RL w/ poor borders mesenchymal comp - malignant resection w/ chemotherapy |
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Odontoma
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first 2 decades of life
maxilla teeth shapes = compound type; amorphous shape = complex shape associated w/: Adenomatoid odont tumor (AOT); Calcifying odont cyst (Gorlin) tx: enulcleation (excellent prog) |
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Peripheral Odontogenic Fibroma
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firm, sessile gingival mass on facial mandible
does not involve bone 3 'Ps' (PG, PGCG, POF)? histo: similar to central odont fibroma tx: local surgical excision (prog excellent) |
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Odontogenic Myxoma
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3rd & 4th decades
multilocular *usually or unilocular RL root resorption, displaces teeth, cross midline Histo: Loose, myxomatous (GAGs > c.t.) Misdx: underdiagnosed as dental papilla or develping tooth or follicle tx: en bloc resection (25% recurrence) |
