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42 Cards in this Set
- Front
- Back
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What is the most common malignant eyelid tumor?
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BCC
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BCC: 5 signs
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central ulceration
firm pearly nodular flatter presentation |
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3 associated signs with BCC
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telangiectasia
madarosis inflammation |
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BCC- more males or females?
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More male and older adults
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BCC: which location is likely?
___> ___> ___> ___ |
lower lid, upper lid, medial canthus, then lateral
(LUML) |
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How many growth patterns does BCC have?
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2 growth patterns
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three kinds of BCC
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nodular
noduloulcerative sclerosing |
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SquamousCC: often arises from ___ and associated with ___ disease.
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actinic keratosis
bowen's disease |
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three types of SquamousCC
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-nodular
-ulcerative -cutaneous horn |
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What differentiates Squamous from Sebaceous usually?
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-Squamous is upperlid
-Sebaceous has yellowish material and usually lower lid |
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What are 3 signs of Sebaceous cell carcinoma?
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madarosis, poliosis, thick red lid margin
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What is the most lethal primary skin tumor?
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malignant melanoma
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What is lentigo maligna aka??
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hutchinson freckle
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What is a Merkel Cell?
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-a tumor of the APUD system
-onset is 7th decade -reported only in Caucasian |
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How is congenital and acquired distichiasis different?
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congenital: primary epithelial germ cell destined to differentate into a specialized sebaceous gland instead developss into a complete pilosebaceous unit
-aquired: caused by metaplasia and differentiation of the meibomian glands to become hair follicles |
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What is the most important cause of aquired distichiasis?
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late stage cicatrizing conjunctivities associated with chemical injury, SJ syndrome, ocular cicatrical pemphigoid
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Poliosis
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-total absence of melanin in the hair follicles of the eyelashes
-associated with: VKH, TS, irradiation, SO, Waardenburg's syndrome |
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lichenification
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seen in tylosis
-involves hyperkeratosis; skin takes on latherly appearance |
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In atopic keratoconjunctivitis, what associated is most common?
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staphylococcal blepharitis
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delayed, cell mediated type 4 sensitivity
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contact dermatoconjunctivitis
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3 differentials in contact dermatoconjunctivitis
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HSV, HZO, burns
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spring catarrh
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vernal keratoconjunctivitis
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VKC has a strong association to ____ and most prominent symptom is ___.
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atropy
itching |
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What are the three variations in vernal keratoconjunctivitis?
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palpebral
limbal mixed |
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VKC patients typically have history of ___ or ____.
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allergies or infantile eczema
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Horner Trantas dots
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white clumps of degenerated eosinophils are usually located at the superior limbus
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GPC is a type ___ hypersensitivity
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4
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Hordeolum:
internal is an infection of __ external is an infxn of __. |
1- IgM
2- hyperimmunoglobulinemia |
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Impetigo is usually caused by two bacteria
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group A strep or
staph aureus |
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How do you distinguish the 2 bacteria in Impetigo?
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group A- tiny blisters and they burst and leave small wet patches of red skin that weep fluid
-staph- larger fluid filled blister that then turn cloudy |
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Bullous impetigo
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toxin-mediated erthryoderma in which epidermal layer of skin sloughs resulting in large areas of skin loss
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St. Anthony's fire
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erysipelas
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What are the 3 types of necrotizing fascitis?
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type I or polymicrobial NF: occurs after trauma/surgery
type II: flesh-eating bacterial infection (Group A strep) type III: clostridial myonecrosis is gas gangrene |
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What may result from molluscum?
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toxic follicular conunctivitis
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T/F Molluscum virus grows on the conjunctiva.
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FALSE
DOES NOT |
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Molluscum is a common occurence in what kind of patients?
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immuno-crompromised
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Anterior blepharitis is caused by 2 bacteria
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staph
seborrhea |
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Posterior bleph caused by
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caused by meibomian gland dsyfunction
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What are the 4 associations with posterior bleph?
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roascea
seborrheic dermatitis cls intolerance meibomitis |
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What is angular blepharitis usually caused by?
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moraxella lacunata
staph aureus |
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How is ptosis different from pseudoptosis?
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which may be caused by conditions such as blepharospasm or hemifacial spasm
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Fatigability
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tested by asking pt. to look up without blinking for 30 seconds. Progressive drooping of one or both lids or inability to maintain gaze is suggestive of myasthenia.
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