Term
| Are the tumors more commonly congenital or acquired? |
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Definition
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Term
| What is the most common type of cyst of the skin around the orbit? |
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Definition
|
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Term
| What type of cyst is most common in kids and young adults and is most commonly found in the orbit? |
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Definition
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Term
| What is normal tissue, but in the wrong location" |
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Definition
|
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Term
| What is it called when the brain tissue herniates into the orbit? |
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Definition
|
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Term
| What is it called when the meningeal membrane herniates into the orbit? |
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Definition
|
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Term
|
Definition
| Sinus mucosa invades the orbit. |
|
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Term
| What is it called if a mucocele is infected |
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Definition
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Term
| Chondrosarcoma and Osteosarcoma of the orbit are what type of tumor |
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Definition
|
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Term
| Primary orbital tumor of the muscle |
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Definition
|
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Term
| What are the types of primary orbital tumors of the optic nerve |
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Definition
| glioma, neuriloma, neurofibroma, meningiomas (most frequent) |
|
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Term
| What is the most common benign primary orbital tumor? |
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Definition
|
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Term
| What are the types of primay vascular orbital tumors? |
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Definition
| Cavernous haemangiomas, lymphangioma, capillary hemangioma ( in kids in the first year of life--strawberry nevus) |
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Term
| What is the most common primary orbital malignancy of childhood? |
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Definition
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Term
| Where does optic nerve meningioma arise from? |
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Definition
| Arachnoid within the dura and infiltrates the subarachnoid and subdural space to compress the nerve. |
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Term
| Optic nerve atrophy is due to what? |
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Definition
| Slow strangulation from chronic compression |
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Term
| What produces painless proptosis from infiltration and thickening of orbital walls. |
|
Definition
| Shenoidal ridge meningioma |
|
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Term
| How do secondary orbital tumors spread? |
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Definition
| Through the bloodstream or lymphatics. |
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Term
| What clinical symptoms will be present in an orbital blowout fracture? |
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Definition
| Muscular involvement that may restrict ocular movements or cause diplopia. Enophthalmous due to eyeglobe atrophy or other orbital tissue and bony fractures. Nerve damage, and possible secondary infection or ulceration . |
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Term
| What is the most common cause of proptosis? |
|
Definition
| Grave's disease (thyroid) |
|
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Term
|
Definition
| subcutaneous tissues, muscle and bone are affected. |
|
|
Term
| Carotid Cavernous sinus fistula |
|
Definition
| 75% from trauma, exopthalmos, bruit, dilated veins, swollen conj. glaucoma, va decreased nerve muscle involvement. |
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