Eye Pathology Flashcards
What is the most common malignancy of the eyelid?
Basal Cell carcinoma
Basal Cell carcinoma in the eyelid is going to prefer which two places?
- Lower Eyelid
2. Medial canthus
True or False. Primary melanomas of the eyelid skin are extremely rare.
True
Diseases that increase orbital contents therefore displace the eye forward, a condition known as __________ .
Proptosis
Which neoplasm of the eyelid is going to have a tendency to metastasize and is therefore a serious and potentially life-threatening condition?
Subaceous carcinoma
Infection with __________ may produce significant conjunctival scarring.
Chlamydia trachomatis
Malignant neoplasms arising in the eyelid and conjunctiva tend to spread to ________ and ______ Lymph nodes.
- Parotid
2. Submandibular
_________ is the part of the conjunctiva that contains a lot of lymphatics.
Fornix
Pinguecula and pterygium appear as submucosal elevations on the conjunctiva. Which one is going to typically originate in the conjunctiva astride the limbus?
Which one will not penetrate the cornea and shows up as a small, yellowish submucosal elevation?
- Pterygium
2. Pinguecula
Which structure is the major refractive surface of the eye?
Cornea (NOT the lens)
________ is an example of a condition that destroys the contour of the cornea and alters its refractive surface.
Keratoconus
Corneal dystrophies are typically _________, while corneal degenerations are typically ________ .
- Inherited
2. Not inherited
Describe the anatomy of the anterior segment.
The anterior chamber is bound anteriorly by the cornea, laterally by the trabecular meshwork and porsteriorly by the iris
________ describes lenticular opacities that may be congenital or acquired.
Cataract
Which part of the eye is going to contain cataracts?
Lens