Term
|
Definition
| calcification within the duct or body of salivary glands |
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|
Term
| most common location for sialoliths |
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Definition
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Term
|
Definition
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|
Term
| lymph node calcifications are usually not as... |
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Definition
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Term
|
Definition
| a calcification within the tonsils |
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Term
| ethnicity that puts small pieces of gold in maxilla for cosmetic purposes |
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Definition
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|
Term
| definition of an antrolith |
|
Definition
| calcified mass in the maxillary sinus |
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Term
| definition of a phlebolith |
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Definition
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|
Term
| definition of osteoma cutis |
|
Definition
calcification in the skin
*it is not bone |
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Term
|
Definition
| calcification in the nasal cavity |
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Term
| BENIGN TUMORS-- EPITHELIAL TUMORS (DEC. 1) |
|
Definition
1) ameloblastoma
2) calcifying epithelial odontogenic tumor |
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|
Term
| ameloblastoma is a ____ tumor but is ____ and _____ |
|
Definition
| ameloblastoma is a *benign tumor but is *aggressive and *locally invasive |
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Term
|
Definition
| yes, they recur frequently |
|
|
Term
| where do ameloblastomas usually occur? |
|
Definition
| molar-ramus region of mandible |
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Term
| characteristic feature of benign tumors (and ameloblastoma) |
|
Definition
| massive displacement of teeth |
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Term
| does ameloblastoma cause expansion? |
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Definition
|
|
Term
|
Definition
|
|
Term
| ameloblastoma can have a ___ or ___ appearance on xray |
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Definition
|
|
Term
| where do calcifying epithelial odontogenic tumors occur? |
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Definition
|
|
Term
| calcifying epithelial odontogenic tumors are ____ lesions |
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Definition
| mixed lesions (opacities within radiolucency) |
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|
Term
| another name for calcifying epithelial odontogenic tumor |
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Definition
|
|
Term
| another name for calcifying epithelial odontogenic tumor |
|
Definition
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Term
| BENIGN TUMORS -- MIXED TUMORS: EPITHELIAL & MESENCHYMAL (DEC. 1) |
|
Definition
1) adenomatoid odontogenic tumor
2) ameloblastic fibroma
3) ameloblastic fibro-odontoma
4) odontoma |
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|
Term
| adenomatoid odontogenic tumors occur most commonly in M or F? |
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Definition
|
|
Term
| adenomatoid odontogenic tumors occur most in what age group? |
|
Definition
| teenagers (avg age is 16) |
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|
Term
| where do adenomatoid odontogenic tumors occur in the jaws? |
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Definition
|
|
Term
| effect of adenomatoid odontogenic tumor on surroundings |
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Definition
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Term
| adenomatoid odontogenic have a ____ relationship to teeth |
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Definition
|
|
Term
| radiograph appearance of adenomatoid odontogenic tumor |
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Definition
| well-defined corticated border |
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|
Term
| where are ameloblastic fibromas located in the jaws? |
|
Definition
| premolar area of mandible |
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|
Term
| ameloblastic fibromas usually have a ____ relationship |
|
Definition
dentigerous relationship (around crown of tooth)
--> they extend from CEJ to CEJ |
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|
Term
| adenomatoid odontogenic tumors can be differentiated from ameloblastic fibromas because the former have... |
|
Definition
| adenomatoid odontogenic tumors can both have dentigerous relationships, but only adenomatoid odontogenic tumors have opacities |
|
|
Term
| what age group do ameloblastic fibromas usually occur in? |
|
Definition
|
|
Term
| do ameloblastic fibromas have radiopaque parts? |
|
Definition
| no, they are completely radiolucent |
|
|
Term
| ddx for an ameloblastic fibroma (radiolucency around an unerupted tooth) |
|
Definition
1) ameloblastic fibroma
2) dentigerous cyst
3) hyperplastic follicle |
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|
Term
| ameloblastic fibro-odontoma are located where in the jaws? |
|
Definition
|
|
Term
| at what age does ameloblastic fibro-odontoma usually occur? |
|
Definition
|
|
Term
|
Definition
|
|
Term
| how does a complex odontoma look on xray? |
|
Definition
| mass of dental tissue (large opacity) |
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|
Term
| how does a compound odontoma look on xray? |
|
Definition
| multiple well-formed teeth |
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|
Term
| ____ are the most common odontogenic tumor |
|
Definition
|
|
Term
| which type of odontoma is more common? |
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Definition
|
|
Term
| odontomas are surrounded by a _____ space |
|
Definition
|
|
Term
| where are complex odontomas commonly found? |
|
Definition
| mandibular 1st and 2nd molar area |
|
|
Term
| where are compound odontomas commonly found? |
|
Definition
| anterior maxilla in association with the crown of an unerupted canine |
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|
Term
| BENIGN TUMORS -- MESENCHYMAL TUMORS |
|
Definition
|
|
Term
| odontogenic myxomas have a high recurrence rate because... |
|
Definition
| they are squishy and hard to get all of the tissue out when being treated |
|
|
Term
| where are odontogenic myxomas commonly found? |
|
Definition
|
|
Term
| characteristic finding on x-ray of odontogenic myxoma |
|
Definition
| straight, thin-etched septa (can form a tennis racquet like appearance) |
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|
Term
| ddx for odontogenic myxoma |
|
Definition
other multilocular lesions:
1) ameloblastoma
2) central giant cell granulomas
3) central hemangiomas |
|
|
Term
| where do benign cementoblastomas usually occur? |
|
Definition
| around roots of mandibular molars |
|
|
Term
| benign cementoblastomas usually occur in what age range? |
|
Definition
|
|
Term
| ddx for benign cementoblastoma |
|
Definition
1) periapical cemental dysplasia
2) condensing osteitis
3) hypercementosis
4) dense bone island |
|
|
Term
| there is a _____ surrounding a benign cementoblastoma |
|
Definition
| radiolucent band (PDL like space) |
|
|
Term
| BENIGN TUMORS -- NON-ODONTOGENIC TUMORS |
|
Definition
1) osteoma
2) osteoblastoma
3) osteoid osteoma
4) Giant cell
5) Hemangioma
6) Neurofibroma
7) Osteochondroma |
|
|
Term
| osteomas can be formed from.. |
|
Definition
1) trabecular bone
2) cortical bone |
|
|
Term
| appearance of osteoid osteomas on xray |
|
Definition
| opaque around periphery then a radiolucent core |
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|
Term
| giant cell tumors usually have a lot of... |
|
Definition
|
|
Term
|
Definition
| proliferation of blood vessels creating a mass |
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|
Term
| the internal radiolucent locules in hemangiomas can look like.. |
|
Definition
|
|
Term
| oteochondromas are tumors of... |
|
Definition
|
|
Term
| osteochondromas can affect the... |
|
Definition
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|
Term
|
Definition
|
|
Term
| ____ is the most common oral malignancy |
|
Definition
|
|
Term
| squamous cell carcinomas are usually ___ corticated and ____ defined |
|
Definition
| not corticated and not well defined |
|
|
Term
| with squamous cell carcinoma there is usually ___ bone destruction |
|
Definition
| complete bone destruction |
|
|
Term
| in osteomyelitis there is usually ____ left in the area of destruction |
|
Definition
| sequestra (islands of bone) |
|
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Term
|
Definition
1) osteomyelitis
2) malignancy |
|
|
Term
|
Definition
|
|
Term
| you can see bone loss in periodontal disease and squamous cell carcinoma, but how can you distinguish? |
|
Definition
| boen loss in squamous cell carcinoma extends beyond the root of the tooth...perio disease wouldn't go that far down |
|
|
Term
| squamous cell carcinoma has a ____ margin |
|
Definition
|
|
Term
| benign lesions tend to cause ___, malignancies ____ |
|
Definition
| benign lesions cause resorption, malignancies grow around teeth |
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|
Term
| malignancies usually have a ____ border, benign lesions have a ___ border |
|
Definition
| malignancies have an *uneven border, benign lesions have a *smooth border |
|
|
Term
| names for 2 parts of irregular border of squamous cell carcinoma |
|
Definition
1) bay: where bone dips down
2) promontory: where bone curves up after bay |
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|
Term
| missing ___ (part of tooth structure) is a sign of malignancy |
|
Definition
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|
Term
| if the patient feels ____ you should think malignancy |
|
Definition
|
|
Term
| a mucoepidermoid carcinoma is the most common ____ |
|
Definition
| malignant salivary gland tumor |
|
|
Term
| mucoepidermoid carcinoma is usually found in what part of the mandible? |
|
Definition
|
|
Term
| ddx for mucoepidermoid carcinoma |
|
Definition
1) mucoepidermoid carcinoma
2) ameloblastoma |
|
|
Term
| osteosarcomas are rare in ___ and common in ____ |
|
Definition
| rare in the jaws and common in long bones |
|
|
Term
| ____ is produced by the tumor in osteosarcoma |
|
Definition
|
|
Term
| what is a periosteal reaction? |
|
Definition
| formation of new bone by the periosteum in response to injury/inflammation |
|
|
Term
| what can you see in osteosarcoma because of the bone production? |
|
Definition
|
|
Term
| diagnosis of osteosarcoma is based on ____ |
|
Definition
|
|
Term
| is the recurrence rate of osteosarcoma high or low? |
|
Definition
|
|
Term
| osteosarcomas can cause widened ____ |
|
Definition
|
|
Term
| chondrosarcomas usually ____ boundaries instead of ____ them |
|
Definition
| expand boundaries instead of destroying them (because it's very slow growing) |
|
|
Term
|
Definition
1) chondrosarcoma
2) fibrous dysplasia |
|
|
Term
| on x-ray chondrosarcomas look...(radiolucent, radiopaque...) |
|
Definition
| mixed radiolucent-radiopaque (b/c of some calcification) |
|
|
Term
| ____ to the jaws can also be malignant lesions |
|
Definition
| metastasis (breast, prostate, lymphoma, leukemia, multiple myeloma) |
|
|
Term
| what type of metastasis do you get multiple punched out radiolucencies in the skull in older people? |
|
Definition
|
|
Term
| Langerhan cell histiocytosis usually involves what part of the jaw? |
|
Definition
|
|
Term
| what type of metastasis do you get multiple punched out radiolucencies in the skull in younger people? |
|
Definition
| Langerhan cell histiocytosis |
|
|
Term
| hemangiosarcoma is a proliferation arising from... |
|
Definition
|
|
Term
| Sinus Radiology (Jan. 26) |
|
Definition
|
|
Term
|
Definition
1) ethmoid
2) maxillary
3) sphenoid
4) frontal |
|
|
Term
| what is the primary view for the maxillary sinus? |
|
Definition
| Waters view (occipitomental view) |
|
|
Term
| what is the primary view for the frontal sinuses? |
|
Definition
| Caldwell view (inclined posteroanterior view) |
|
|
Term
| primary view for the sphenoid sinus? |
|
Definition
|
|
Term
| the central ray is through what part of the head in a waters view? |
|
Definition
|
|
Term
| where does the tragocanthal line run in the waters view? |
|
Definition
| line connecting the ear and eye |
|
|
Term
| the lateral view is similar to what other view that has very precise measurements? |
|
Definition
|
|
Term
| in the caldwell view, what part of the head does the central ray go through? |
|
Definition
frontal sinus (at a 23 degree angle from the floor)
-tragocanthal line is perpendicular to the floor) |
|
|
Term
| what does pneumatization mean? |
|
Definition
sinuses expand into the bone
"sinus pneumatized the bone" |
|
|
Term
| what is frontal sinus aplasia? |
|
Definition
| frontal sinus is missing on one side |
|
|
Term
| 2 reasons why sinus can be opaque |
|
Definition
1) mucosal thickening
2) fluid in the sinus |
|
|
Term
| how can you distinguish between mucosal thickening and fluid in the sinus? |
|
Definition
| mucosal thickening will parallel the outside walls of the sinus |
|
|
Term
| chronic sinus infection can cause what? |
|
Definition
| sclerosis (thickening of cortical boundaries) |
|
|
Term
| what is mucous retention phenomenon? |
|
Definition
| a gland duct that opens into the sinus becomes blocked which causes mucus buildup in the soft tissue |
|
|
Term
| in which sinus is mucous retention phenomenon very common? |
|
Definition
|
|
Term
| how does the mucous retention phenomenon look on radiograph? |
|
Definition
|
|
Term
| do mucous retention phenomenon require treatment? |
|
Definition
|
|
Term
| how is a mucocele caused? |
|
Definition
| mucus can't get out of a sinus because the ostium is blocked |
|
|
Term
| does mucocele cause a problem? |
|
Definition
| yes, it can mimic a malignancy; can destroy cortical boundaries |
|
|
Term
| does the maxillary sinus get smaller or larger as you age? |
|
Definition
|
|
Term
| are the 2 maxillary sinuses symmetrical on a lateral radiograph? |
|
Definition
|
|
Term
| what is maxillary sinus hypoplasia? |
|
Definition
|
|
Term
| what can cause sinus hypoplasia? |
|
Definition
1) mucous buildup because ostium is blocked
2) fluid
3) soft tissue |
|
|
Term
| how can you tell if there is fluid in the sinus? |
|
Definition
| very straight border of air/fluid level |
|
|
Term
|
Definition
| piece of bone sticking out of superior alveolar bone into sinus |
|
|
Term
| opacity in the soft tissue between the maxillary teeth and sinus can be what 4 things? |
|
Definition
1) calcification
2) bone
3) tooth
4) foreign body |
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|
