ORAD800: Radiographic Signs of Benign Tumors and Malignancies

Density Radiographic Signs of BENIGN tumors

radiolucent

mixed RL-RO

Septations, Loculations

Density Radiographic Signs of MALIGNANT tumors

ALWAYS Radiolucent except: metastases (breast and prostate), & Osteogenic sarcoma

Which malignant tumors are not always RL ?

Breast

Prostate

Osteogenic Sarcoma

Margin Radiographic Signs of BENIGN tumors

well-defined

smooth, regular

corticated

Margin Radiographic Signs of MALIGNANT tumors

ill-defined

ragged

moth-eaten

Shape Radiographic Signs of BENIGN tumors

round/oval

Shape Radiographic Signs of MALIGNANT tumors

irregular

Cortical Bone Adj. Structure of BENIGN tumors

expansion

thinning

aggressive may arode

Cortical Bone Adj. Structure of MALIGNANT tumors

erosion

destruction

Periosteum Adj. Structure of BENIGN tumor

onion skin effect (RAISED UPWARD)

Periosteum Adj. Structure of MALIGNANT tumor

destruction

sunray effect

Onion Skin appears due to alternate layers of bone __ and __

resorption and deposition

What other issues may have "onion skin" appearance?

Garre's osteomyelitis

ewing's sarcoma

osteo/condrosarcoma

IAN Adj. Structure of BENIGN tumor

displacement of mandibular canal

NO neuro-sensory deficits

IAN Adj. Structure of MALIGNANT tumor

invasion, destruction of canal

anesthesia and parathesia

Tooth Root of BENIGN tumor

horizontal

Tooth Root of MALIGNANT tumor

more variable

spiked roots

Ameloblastoma is a ___ and ___ tumor

benign

odontogenic

Ameloblastoma is a benign/malignant tumor

benign

Ameloblastoma is a odontogenic/non-odontogenic tumor

odontogenic

Ameloblastoma is of __ origin

ectodermal

Radiographic Signs of Ameloblastoma

cortical expansion, thinning, and/or erosion

root resorption common

80% mandible

Ameloblastomas are notoriously ___locular

multi

Calcifying Epithelial Odontogenic Tumor is __ and __

benign

odontogenic

Calcifying Epithelial Odontogenic Tumor is a odontogenic/non-odontogenic tumor

odontogenic

Calcifying Epithelial Odontogenic Tumor is a benign/malignant tumor

benign

Calcifying Epithelial Odontogenic Tumor is of __ origin

ectodermal

Radiographic signs of Calcifying Epithelial Odontogenic Tumor

mixed/RL

usually associated with unerupted tooth

Odontoma is a __ and __tumor

benign

odontogenic

Odontoma is a odontogenic/non-odontogenic tumor

odontogenic

Odontoma is a benign/malignant tumor

benign

Odontoma is of __ origin

mixed

Radiographic Signs of Odontoma

mixed

target lesion

Complex Odontomas look/do not look like the structure

look

Compound Odontomas look/do not look like the structure

do not

Ameloblastic Fibroma is a ___ and ___ tumor

benign

odontogenic

Ameloblastic Fibroma is a odontogenic/non-odontogenic tumor

odontogenic

Ameloblastic Fibroma is a benign/malignant tumor

benign

Ameloblastic fibroma is of ___ origin

mixed

Radiographic Sign of Ameloblastic Fibroma

associated with unerupted teeth

interferes with eruption

Ameloblastic Fibroodontoma is a __ and __ tumor

benign

odontogenic

Ameloblastic Fibroodontoma is a benign/malignant tumor

benign

Ameloblastic Fibroodontoma is a odontogenic/non-odontogenic tumor

odontogenic

Ameloblastic Fibroodontoma is of __ origin

mixed

Radiographic Signs of Ameloblastic Fibroodontoma

Mixed density

associated with unerupted teeth

*up to 10 years of age*

Adenomatoid Odontogenic Tumor is a __ and ___ tumor

benign

odontogenic

Adenomatoid Odontogenic Tumor is a benign/malignant tumor

benign

Adenomatoid Odontogenic Tumor is a odontogenic/non-odontogenic tumor

odontogenic

Adenomatoid Odontogenic Tumor is of __ origin

mixed

Location of Adenomatoid Odontogenic Tumor

maxilla!!! anterior!!!

Radiographic Signs of Adenomatoid Odontogenic Tumor

mixed/ FL

usually unerupted tooth

*snow flake appearance*

Odontogenic Myxoma is of ___ and __ origin

benign

odontogenic

Odontogenic Myxoma is a benign/malignant tumor

benign

Odontogenic Myxoma is a odontogenic/nonodontogenic tumor

odontogenic

Odontogenic Myxoma is of __ origin

mesodermal

Radiographic Signs of Odontogenic Myxoma

variable

multilocular

soapbubble

honeycomb

straight thin septa

Benign Cementoblastoma is a __ and ___ tumor

benign

odontogenic

Benign Cementoblastoma is a odontogenic/nonodontogenic tumor

odontogenic

Benign Cementoblastoma is a benign/malignant tumor

benign

Benign Cementoblastoma is of __ origin

mesodermal

Radiographic Signs of Benign Cementoblastoma

mixed density

target lesion

root resorption

Clinical Sign of Benign Cementoblastoma

PAINFUL

Location of Benign Cementoblastoma

mandibular premolars

Osteoma is a __ and __ tumor

benign

non-odontogenic

Osteoma s a benign/malignant tumor

benign

Osteoma is a odontogenic/nonodontogenic tumor

nonodontogenic

Osteoma is of __origin

mesodermal

Location of Osteoma

lingual ramus, inferior border, paranasal

Multiple Osteoma

Gardner's Syndrome

Most common location of osteomas

frontal sinus

Central Hemangioma is a __ and __ tumor

benign

nonodontogenic

Central Hemangioma is a odontogenic/nonodontogenic tumor

nonodontogenic

Central Hemangioma a benign/malignant tumor

benign

Central Hemangioma is of __ origin

mesodermal

Radiographic Signs of Central Hemangioma

RL/mixed

variable margins

"multilocular"

root resorption

canal widening

Central Giant Cell Granuloma (CGCG) Radiographic signs

radiolucent

well-defined (mandible)

ill-defined maxilla

corticated/non-corticated

granular , wispy septa

Radiographic Signs of Squamous Cell Carcinoma

radiolucent

ill-defined borders

irregular

cortical destruction

Osteosarcoma Radiographic Signs

radiographic (widened PDL)

Mixed (fleck, sunray appearance)

ill-defined margins

irregular

cortical destruction

root resorption (displacement)

Osteolytic has ___

radiolucent

Osteogenic has ___

mixed

Metastatic Lesion Radiographic Signs

radiolucent

may have radiopaque foci

ill-defined bordered

irregular

cortical destruction