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11 Cards in this Set
- Front
- Back
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hemangioma
1. failure of ___ in early stages of ___
2. appear in ___
3. ___ 5:1
4. ___ phase: rapid growth for first ___ months, accompanied by increase in ___ and ___
5. involuting phase= ___ years
6. tendency to disappear in ___
7. true intraosseous hemangiomas are extremely ____ |
1. differentiation, angiogenesis
2. infancy
3. F
4. 6-8 months, alkaline phosphatase and factor VII
5. 5-9 years
6. adolescence
7. rare |
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vascular malformations:
1. disturbance in ___ stage of angiogenesis with persistence of ___
2. growth parallels that of a ___
3. does not disappear ___
4. ___ predilection
5. ___ 2:!
6. one/third are ____ |
1. late, AV anastomoses
2. child
3. spontaneously
4. female
5. mandible
6. intraosseous |
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Vascular malformations:
1. blood shunted to lesion causes it to grow which produces ___ shunting of blood creating a cycle
2. ____ flow (AV fistulae, arterial malformation) are life-threatning hemorrhage ___ or after ___
3. ___ flow (capillary, venous or lymphatic) are difficult to __, frequent ___ |
1. increased
2. high, spontaneously, exodontia
3. low, manage, reoccurance |
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Radiographic findings:
1. extremely ___
2. ___ defined RL traversed by delicate bony trabeculae forming __ or ___ architecture with small round and irregular trabeculae
3. trabeculae may be arranged in a ___ fashion, giving rise to a __/___ pattern
4. cortices may be ___, remodeled or ___
5. may be a single unilocular RL resembling a ___
6. ___ resorption, effacement of ____, floating in air appearance of teeth
7. __ and __ clarify extent of lesion, bone erosion and involvement of major vessels |
1. variable
2. poorly, honeycomb or soap bubble
3. radiating, sunbust/spoke wheel pattern
4. thinned, eroded
5. cyst
6. root, lamina dura
7. CT and MRI |
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HAZARD! intraosseous malformation of ___ region can give rise to dental emergenceis and may cause disfigurement, morbidity, and even death due to ___ during tooth extraction |
maxillofacial, exsanguination
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although intraosseous vascular malformations are rare, always consider the possibily that any RL lesion could represent a vascular malformation, especially in ___, and this wil increase the risk of having a catastrophic event |
young person |
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even a needle puncture of a ____ can necessitate an emergency response |
needle puncture |
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treatment options:
1. ligation of ___- obsolete and ineffective because collateral circulation will develop, also prevents future interventions
2. ___ such as boiling water, ___ or ___ usually become diluted to due wash out in high flow lesions
3. ___
4. ___
5. ___ |
1. external carotid artery
2. sclerosing agents, sodium morrhuate, hypertonic glucose
3. steroids
4. interferon alpha 2
5. cryotherapy |
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treatment of choice:
1. ______= subtracts bone densities for better visualization of vascular bed, bilateral due to importance of collaterals and multiple anastomoses of maxillary artery
2. arterial embolization in combination with ___ approach followed by ligation of __ vessel and resection within ___ horurs to ___ days, possible reconstructive surgery
3. eliminates whole cascular latticework feeding the lesion |
1. superselective angiography of ECA
2. retrograde venous approach, feeder, 48 hours-10 days |
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most important embolizing agent |
PVA particles 150-500 um |
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potential complications of embolization |
pulmonary embolism and cerebrovascular accident |
