TheThe
RadiologyRadiologyofof
Benign NeoplasmsBenign Neoplasms
TheThe
RadiologyRadiologyofof
Benign NeoplasmsBenign Neoplasms
II. Non-OdontogenicII. Non-Odontogenic
Giant cell lesion
Hemangioma (Haemangioma)
Neurofibroma
Fibroma
Osteoma
Osteoblastoma
Chondroma
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Giant cell lesion
Hemangioma (Haemangioma)
Neurofibroma
Fibroma
Osteoma
Osteoblastoma
Chondroma
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Giant cell lesion
• Central giant cell lesion Central giant cell granuloma• Peripheral giant cell lesion Peripheral giant cell granuloma• Giant cell tumor True giant cell tumor
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Giant cell lesion
• Central giant cell lesion Central giant cell granuloma• Peripheral giant cell lesion Peripheral giant cell granuloma• Giant cell tumor True giant cell tumor
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Central giant cell lesion
Central giant cell granuloma
• before 21 years • unknown nature• anterior to first permanent molars• painless
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
• radiolucent, with “salt and pepper “ calcification• thin, wispy septa• resorption of teeth very common
Central giant cell lesion
Central giant cell granuloma
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
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Giant cell lesion
• Central giant cell lesion Central giant cell granuloma• Peripheral giant cell lesion Peripheral giant cell granuloma• Giant cell tumor True giant cell tumor
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Central giant cell lesion
Central giant cell granuloma
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Giant cell lesion
• Central giant cell lesion Central giant cell granuloma• Peripheral giant cell lesion Peripheral giant cell granuloma• Giant cell tumor True giant cell tumor
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
• after 21 years • rare in jaws• posterior to first permanent molars• painful
Giant cell tumor
True giant cell tumor
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
• considered by some to be variant of GCG• radiographic appearance similar to GCG
Giant cell tumor
True giant cell tumor
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Giant cell lesion
Hemangioma (Haemangioma)
Neurofibroma
Fibroma
Osteoma
Osteoblastoma
Chondroma
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
• Intraosseous hemangioma• Extraosseous hemangioma
Hemangioma
Haemangioma
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
• Intraosseous hemangioma• Extraosseous hemangioma
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Hemangioma
Haemangioma
• some may be true neoplasms, most are probably developmental• uncommon• no phleboliths
Intraosseous Hemangioma
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
• altered bone pattern• “moth-eaten” bone pattern• hypoplastic teeth
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Intraosseous Hemangioma
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
• Intraosseous hemangioma• Extraosseous hemangioma
Hemangioma
Haemangioma
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
• may be some true neoplasms, most are probably developmental• common in head and neck area• phleboliths common
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Extraosseous Hemangioma
• may have hypo- or hyperplasia of neighboring bone
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Intraosseous Hemangioma
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
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The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Giant cell lesion
Hemangioma (Haemangioma)
Neurofibroma
Fibroma
Osteoma
Osteoblastoma
Chondroma
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Neurofibroma
• Solitary• Neurofibromatosis
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Neurofibroma
• Solitary• Neurofibromatosis
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Neurofibroma
• radiolucent• well-defined, corticated• unilocular or multilocular• hypo- or hyperplasia of neighboring bone
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
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The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
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The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Giant cell lesion
Hemangioma (Haemangioma)
Neurofibroma
Fibroma
Osteoma
Osteoblastoma
Chondroma
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Fibroma
• radiolucent• unilocular• corticated• may look like cyst
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Giant cell lesion
Hemangioma (Haemangioma)
Neurofibroma
Fibroma
Osteoma
Osteoblastoma
Chondroma
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Osteoma
• Cortical osteoma• Cancellous osteoma• Osteoid osteoma• Osteoma cutis
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Osteoma
• Cortical osteoma• Cancellous osteoma• Osteoid osteoma• Osteoma cutis
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Cortical and Cancellous osteoma
• almost exclusively in the skull and facial bones• most common in the paranasal sinuses
(frontal>ethmoid>maxillary>sphenoid)
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Cortical and Cancellous osteoma
• uncommon in the jaws• many so-called osteoma probably reactive or “burned-out fibrous dysplasia
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Osteoma
• Cortical osteoma• Cancellous osteoma• Osteoid osteoma• Osteoma cutis
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Cortical osteoma (Ivory osteoma)
• osseous neoplasm of cortical bone• many so-called osteoma probably reactive or “burned-out fibrous dysplasia
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
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The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Osteoma
• Cortical osteoma• Cancellous osteoma• Osteoid osteoma• Osteoma cutis
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Cancellous osteoma
• osseous neoplasm of cancellous bone• uncommon in the jaws• many so-called osteoma probably reactive or “burned-out fibrous dysplasia
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
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The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Gardner Syndrome
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Gardner Syndrome
• AD• multiple osteomas (one of first features)• polyposis of colon (polyps become malignant)• epidermoid and sebaceous cysts
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Gardner Syndrome
• desmoid skin tumors• impacted supernumerary and permanent teeth• odontomas
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
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Osteoma
• Cortical osteoma• Cancellous osteoma• Osteoid osteoma• Osteoma cutis
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Osteoid osteoma
• osseous neoplasm of bone• uncommon in the jaws• may be painful
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Osteoid osteoma
• bull’s-eye appearance• subperiosteal• radiopaque nidus, radiolucent band, sclerotic border
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Osteoma
• Cortical osteoma• Cancellous osteoma• Osteoid osteoma• Osteoma cutis
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Osteoma cutis
• non-neoplasm of bone• found in facial region• calcification in scar tissue
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
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Giant cell lesion
Hemangioma (Haemangioma)
Neurofibroma
Fibroma
Osteoma
Osteoblastoma
Chondroma
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Osteoblastoma
• uncommon primary lesion of bone• occasionally in maxilla or mandible• mandible more than maxilla
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Osteoblastoma
• may be rapid and cause pain• tender to palpation• “radiolucent”
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
Giant cell lesion
Hemangioma (Haemangioma)
Neurofibroma
Fibroma
Osteoma
Osteoblastoma
Chondroma
Non-OdontogenicNon-Odontogenic
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms
The Radiology of Benign The Radiology of Benign NeoplasmsNeoplasms