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The Radiology of Benign Neoplasms
A. Ruprecht D.D.S., M.Sc.D., F.R.C.D.(C,), Dip. A.B.O.M.R. Professor and Director of Oral and Maxillofacial Radiology Professor of Radiology Professor of Anatomy and Cell Biology The University of Iowa
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The Radiology of Benign Neoplasms
Well defined Corticated Space occupying Displacement of teeth Directional resorption of teeth Displacement of anatomical structures
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The Radiology of Benign Neoplasms
Well defined Corticated Space occupying Displacement of teeth Directional resorption of teeth Displacement of anatomical structures
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Well Defined Poorly Defined
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The Radiology of Benign Neoplasms
Well defined Corticated Space occupying Displacement of teeth Directional resorption of teeth Displacement of anatomical structures
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Corticated
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The Radiology of Benign Neoplasms
Well defined Corticated Space occupying Displacement of teeth Directional resorption of teeth Displacement of anatomical structures
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Space Occupying vs. Non-Space Occupying
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Space Occupying
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The Radiology of Benign Neoplasms
Well defined Corticated Space occupying Displacement of teeth Directional resorption of teeth Displacement of anatomical structures
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The Radiology of Benign Neoplasms
Well defined Corticated Space occupying Displacement of teeth Directional resorption of teeth Displacement of anatomical structures
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The Radiology of Benign Neoplasms
Well defined Corticated Space occupying Displacement of teeth Directional resorption of teeth Displacement of anatomical structures
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The Radiology of Benign Neoplasms
Displacement of teeth Directional resorption of teeth Displacement of anatomical structures
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The Radiology of Benign Neoplasms
Displacement of periosteum Internal structure: trabeculae & calcification Unilocular / multilocular
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The Radiology of Benign Neoplasms
Displacement of periosteum Internal structure: trabeculae & calcification Unilocular / multilocular
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The Radiology of Benign Neoplasms
Displacement of periosteum Internal structure: trabeculae & calcification Unilocular / multilocular
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The Radiology of Benign Neoplasms
Displacement of periosteum Internal structure: trabeculae & calcification Unilocular / multilocular
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The Radiology of Benign Neoplasms
Cyst or Benign Neoplasm Malignant Neoplasm
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The Radiology of Benign Neoplasms
I. Odontogenic
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The Radiology of Benign Neoplasms
Odontogenic Epithelial Epithelial with induction/Mixed (epithelial and mesenchymal) Mesenchymal
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The Radiology of Benign Neoplasms
Odontogenic Epithelial Epithelial with induction/Mixed (epithelial and mesenchymal) Mesenchymal
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. Dental Lamina Ameloblastoma Enamel organ Adenomatoid Odontogenic
Tumor Dental Lamina Odontoma Root sheath of Hertwig Ameloblastic fibroma
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The Radiology of Benign Neoplasms
Odontogenic Epithelial Ameloblastoma Squamous odontogenic tumor Adenomatoid odontogenic tumor Calcifying epithelial odontogenic tumor Clear cell odontogenic tumor [Melanotic neuroectodermal tumor of infancy]
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The Radiology of Benign Neoplasms
Odontogenic Epithelial Ameloblastoma Squamous odontogenic tumor Adenomatoid odontogenic tumor Calcifying epithelial odontogenic tumor Clear cell odontogenic tumor [Melanotic neuroectodermal tumor of infancy]
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The Radiology of Benign Neoplasms
Ameloblastoma Age: years (predominantly 30s and 40s) Mandible:Maxilla = 85:15 60% mandibular molar-ramus area
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Ameloblastoma 10% 3% 2% 60% 15% 10%
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Unilocular Multilocular (coarse septa) Soap bubble Honeycomb
The Radiology of Benign Neoplasms Ameloblastoma Unilocular Multilocular (coarse septa) Soap bubble Honeycomb
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The Radiology of Benign Neoplasms
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The Radiology of Benign Neoplasms
Ameloblastoma Displacement or resorption of teeth Extends beyond radiographic limits Superior aspect often lost
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Keratocyst -> Ameloblastoma
The Radiology of Benign Neoplasms Keratocyst -> Ameloblastoma
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The Radiology of Benign Neoplasms
July 26, 1973
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March 8, 1974
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Simple Bone Cyst -> Ameloblastoma
The Radiology of Benign Neoplasms Simple Bone Cyst -> Ameloblastoma
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The Radiology of Benign Neoplasms
February 5, 1966
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December 29, 1967
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July 19, 1968
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January 11, 1969
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July 14, 1969
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Recurrent Ameloblastoma
The Radiology of Benign Neoplasms Recurrent Ameloblastoma
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Recurrent Ameloblastoma
The Radiology of Benign Neoplasms Recurrent Ameloblastoma radiolucent areas circular pattern
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The Radiology of Benign Neoplasms
Odontogenic Epithelial Ameloblastoma Squamous odontogenic tumor Adenomatoid odontogenic tumor Calcifying epithelial odontogenic tumor Clear cell odontogenic tumor [Melanotic neuroectodermal tumor of infancy]
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Squamous odontogenic tumor (SOT)
The Radiology of Benign Neoplasms Squamous odontogenic tumor (SOT)
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Squamous odontogenic tumor (SOT)
The Radiology of Benign Neoplasms Squamous odontogenic tumor (SOT) Age: 10s - 60s years (mean of 40) Mandible:Maxilla = 1:1 alveolar process area from rests of Malassez?
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The Radiology of Benign Neoplasms
Squamous odontogenic tumor (SOT) radiolucent well-circumscribed semilunar associated with roots of teeth
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The Radiology of Benign Neoplasms
Squamous odontogenic tumor (SOT) locally invasive recur with conservative treatment excision is treatment of choice
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The Radiology of Benign Neoplasms
Odontogenic Epithelial Ameloblastoma Squamous odontogenic tumor Adenomatoid odontogenic tumor Calcifying epithelial odontogenic tumor Clear cell odontogenic tumor [Melanotic neuroectodermal tumor of infancy]
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Adenomatoid odontogenic tumor (AOT)
The Radiology of Benign Neoplasms Adenomatoid odontogenic tumor (AOT)
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Adenomatoid odontogenic tumor (AOT)
The Radiology of Benign Neoplasms Adenomatoid odontogenic tumor (AOT) 10-20 (18 years of age) anterior maxilla or mandible radiolucent or with radiopaque foci may mimic dentigerous cyst
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The Radiology of Benign Neoplasms
Odontogenic Epithelial Ameloblastoma Squamous odontogenic tumor Adenomatoid odontogenic tumor Calcifying epithelial odontogenic tumor Clear cell odontogenic tumor [Melanotic neuroectodermal tumor of infancy]
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Calcifying epithelial odontogenic tumor (CEOT)
The Radiology of Benign Neoplasms Calcifying epithelial odontogenic tumor (CEOT)
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Calcifying epithelial odontogenic tumor (CEOT, Pindborg tumor)
The Radiology of Benign Neoplasms Calcifying epithelial odontogenic tumor (CEOT, Pindborg tumor) 10-90 (mean 40) maxilla:mandible = 1:2 ramus-molar region
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Calcifying epithelial odontogenic tumor (CEOT, Pindborg tumor)
The Radiology of Benign Neoplasms Calcifying epithelial odontogenic tumor (CEOT, Pindborg tumor) usually associated with impacted teeth unilocular or multilocular radiolucent or with radiopaque foci
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The Radiology of Benign Neoplasms
Odontogenic Epithelial Ameloblastoma Squamous odontogenic tumor Adenomatoid odontogenic tumor Calcifying epithelial odontogenic tumor Clear cell odontogenic tumor [Melanotic neuroectodermal tumor of infancy]
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Clear cell odontogenic tumor
The Radiology of Benign Neoplasms Clear cell odontogenic tumor
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Clear cell odontogenic tumor
The Radiology of Benign Neoplasms Clear cell odontogenic tumor rare 60 years of age females maxilla or mandible
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Clear cell odontogenic tumor
The Radiology of Benign Neoplasms Clear cell odontogenic tumor radiolucent poorly circumscribed locally aggressive
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The Radiology of Benign Neoplasms
Odontogenic Epithelial Ameloblastoma Squamous odontogenic tumor Adenomatoid odontogenic tumor Calcifying epithelial odontogenic tumor Clear cell odontogenic tumor [Melanotic neuroectodermal tumor of infancy]
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Melanotic neuroectodermal tumor of infancy
The Radiology of Benign Neoplasms Melanotic neuroectodermal tumor of infancy
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Melanotic neuroectodermal tumor of infancy (MNTI)
The Radiology of Benign Neoplasms Melanotic neuroectodermal tumor of infancy (MNTI) rare young, usually first year of life anterior maxilla moderately well circumscribed, around apical area of roots
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The Radiology of Benign Neoplasms
Odontogenic Epithelial Epithelial with induction/Mixed (epithelial and mesenchymal) Mesenchymal
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The Radiology of Benign Neoplasms
Odontogenic Epithelial Epithelial with induction/Mixed (epithelial and mesenchymal) Mesenchymal
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The Radiology of Benign Neoplasms
Odontogenic Epithelial with induction Ameloblastic fibroma Ameloblastic fibro-odontoma Odonto-ameloblastoma
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The Radiology of Benign Neoplasms
Odontogenic Epithelial with induction Ameloblastic fibroma Ameloblastic fibro-odontoma Odonto-ameloblastoma
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The Radiology of Benign Neoplasms
Odontogenic Epithelial with induction Ameloblastic fibroma Ameloblastic fibro-odontoma Odonto-ameloblastoma
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The Radiology of Benign Neoplasms
Odontogenic Epithelial with induction Ameloblastic fibroma Ameloblastic fibro-odontoma Odonto-ameloblastoma
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The Radiology of Benign Neoplasms
Odontogenic Epithelial with induction Ameloblastic fibroma Ameloblastic fibro-odontoma Compound odontoma Complex odontoma
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The Radiology of Benign Neoplasms
Ameloblastic fibroma Ameloblastic fibro-odontoma Compound odontoma Complex odontoma
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The Radiology of Benign Neoplasms
–>Compound Odontoma Ameloblastic Fibroma–>Ameloblastic Fibro-odontoma –>Complex Odontoma
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The Radiology of Benign Neoplasms
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The Radiology of Benign Neoplasms
Ameloblastic Fibroma primitive myxoid connective tissue resemblance to dental pulp strands of odontogenic epithelium 2 cells wide Ameloblastic Fibro-odontoma primitive myxoid connective tissue resemblance to dental pulp strands of odontogenic epithelium 2 cells wide cells differentiate to produce enamel and dentin
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The Radiology of Benign Neoplasms
Compound Odontoma Complex odontoma prominent enamel matrix often seen before final maturation of hard tissue enamel and dentin in the form of compound or complex odontoma Ameloblastic Fibro-odontoma prominent enamel matrix often seen before final maturation of hard tissue enamel and dentin in the form of compound or complex odontoma
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The Radiology of Benign Neoplasms
Odontogenic Epithelial with induction Ameloblastic fibroma Ameloblastic fibro-odontoma Odonto-ameloblastoma
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Odonto-ameloblastoma
The Radiology of Benign Neoplasms Odonto-ameloblastoma
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Odonto-ameloblastoma
The Radiology of Benign Neoplasms Odonto-ameloblastoma rare young, first decade ameloblastoma component odontoma component
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The Radiology of Benign Neoplasms
Odontogenic Epithelial Epithelial with induction/Mixed (epithelial and mesenchymal) Mesenchymal
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The Radiology of Benign Neoplasms
Odontogenic Mesenchymal Odontogenic fibroma Odontogenic myxoma Benign cementoblastoma Cementifying fibroma
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The Radiology of Benign Neoplasms
Odontogenic Mesenchymal Odontogenic fibroma Odontogenic myxoma Benign cementoblastoma Cementifying fibroma
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The Radiology of Benign Neoplasms
Odontogenic fibroma Central odontogenic fibroma Peripheral odontogenic fibroma
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Central odontogenic fibroma
The Radiology of Benign Neoplasms Central odontogenic fibroma
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Central odontogenic fibroma
The Radiology of Benign Neoplasms Central odontogenic fibroma rare all age groups radiolucent usually unilocular
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Peripheral odontogenic fibroma
The Radiology of Benign Neoplasms Peripheral odontogenic fibroma
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The Radiology of Benign Neoplasms
Odontogenic Mesenchymal Central odontogenic fibroma Odontogenic myxoma Benign cementoblastoma Cementifying fibroma
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The Radiology of Benign Neoplasms
Odontogenic myxoma
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Odontogenic myxoma 10-50 years (15-35, mean 30) maxilla:mandible 1:1 may be infiltrative and aggressive
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The Radiology of Benign Neoplasms
Odontogenic myxoma “tennis racket” appearance (neither coarse nor fine septa) cortical expansion root displacement rather than resorption
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The Radiology of Benign Neoplasms
Odontogenic Mesenchymal Central odontogenic fibroma Odontogenic myxoma Benign cementoblastoma Cementifying fibroma
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Benign cementoblastoma
The Radiology of Benign Neoplasms Benign cementoblastoma
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Benign cementoblastoma
The Radiology of Benign Neoplasms Benign cementoblastoma second or third decade, usually before 25 continuous with root , which is resorbed pulp vitality unrelated
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Benign cementoblastoma
The Radiology of Benign Neoplasms Benign cementoblastoma radiopaque mass surrounded by radiolucent line surrounded by radiopaque line
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The Radiology of Benign Neoplasms
Odontogenic Mesenchymal Central odontogenic fibroma Odontogenic myxoma Benign cementoblastoma Cementifying fibroma
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Cementifying fibroma Ossifying fibroma Cemento-ossifying fibroma
The Radiology of Benign Neoplasms Cementifying fibroma Ossifying fibroma Cemento-ossifying fibroma
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The Radiology of Benign Neoplasms
Cementifying fibroma all age groups, mainly around 40 radiolucent, mixed, radiopaque usually unilocular
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