Lecture 2 - Various Derm conditions Flashcards
psoriasis:
papules and _____ with silvery ______, especially on ____ surfaces. besides joints, what is often also affected?
plaques, scaling;
extensor;
nail (pitting)
psoriasis:
____ sign is pinpoint bleeding from exposure of ____ _____ when scales are scraped off
auspitz;
dermal papillae
contact dermatitis:
type ___ HSR;
name 2 causes;
characterized by pruritic oozing rash with vesicles
4;
poison ivy, nickle
also penicillin, detergents
atopic dermatitis: type \_\_\_ HSR; commonly on skin \_\_\_\_\_; chronic form is called \_\_\_\_; pruritic and itchy
1;
flexures;
ezcema;
what is another name for seborrheic dermatitis?
associated with what fungus?
dandruff;
mallassezia furfur
____ ______ is characterized by erythema and scaling on chronically edematous legs from _____ hypertension
stasis dermatitis;
venous
dyshidrotic dermatitis:
classically occurs where?
older or younger adults?
palms and soles;
younger
recurrent, pruritic vesicular eruption
impetigo:
typically caused by ______;
contagious or no?;
_____ colored crusting
staph aureus (also strep pyogenes;
very contagious;
honey
macules–>pustules
_____ _____ is characterized by a herald patch folled days later by multiple scaly erythematous plaques. often in “____ _____” distribution on trunk
pityriasis rosea; christmas tree (distributed on langer lines)
pityriasis rosea:
due to reactivation of herpes ____;
self resolving or no?
6 or 7;
yes after weeks
erythema multiforme:
name an infection it is caused by =
name 2 drugs its associated with
mycoplasma pneumoniae (also HSV);
sulfa drugs, beta lactams
varied presentation
what is another name for urticaria?
due to ______ degranulation;
characterized by dermal edema and ______ dilation
hives;
mast cell;
lymphatic channel
what is another name for skin tag?
these are usually seen where on the body?
made of loosely arranged ___ fibers and blood vessels surrounded by epidermis
acrochordon; skin folds (esp obese people); collagen
seborrheic keratosis:
lesions are said to look “___ ___”;
greasy, pigmented epithelial proliferation with ____ filled cysts (horn cysts);
____ _____ = sudden appearance of multiple keratosis, indicating a ____ malignancy
stuck on;
keratin;
leser-trelat sign;
GI
_____ _____ = pre-SCC lesions caused by sun exposure. small, rough, erythematous brownish plaques.
actinic keratosis
cutaneous horns:
made of compact _____;
associated with benign, malignant lesions, or both?
keratin;
both
lentigo:
seen in old or younger patients?
due to what?
increased melanosomes or increased melanocytes?q
older;
sun exposure;
melanocytes
nevi/moles: due to proliferation of \_\_\_\_\_: \_\_\_\_\_\_ is the most common in kids and is flat; \_\_\_\_\_ is seen in adults and are papular; compound is in between the two
melanocytes;
junctional;
intradermal
angioma/hemangiomas:
what are they due to?
do these blanch?
overgrowth of blood vessels;
yes
a _____ ____ is a polyploid lobulated capillary hemanioma that can ulcerate or blood. associated with _____ and _____
pyogenic granuloma;
trauma, pregnancy
acne:
androgens cause an increase in _____ production. also, there is abnormal keratinocyte _______ and blockage of the follicle. associated with colonization by what bacteria?
sebum;
desquamation;
propionibacterium acnes
_____ _____ are small papules with scaly tops. usually located on the outer aspect of both _______ (Symmetric)_
keratosis pilaris;
arms
keratosis pilaris:
due to abnormal keratinization of the lining of the _____
hair follicle
verrucae are caused by ____ typically. _____ hyperplasia
HPV;
epidermal;
molluscum contagiousum:
_____ papules caused by _____. keratinocytes show ______ inclusions aka molluscum bodies
umbillicated;
poxvirus;
cytoplasmic
_____ causes hot tub folliculitis
pseudomonas
cysts:
due to _____ deposits beneath the epidermis.
keratin
scabies:
caused by a _____that burrows into the stratum _____. causes pruritis that is worse when?
mite;
corneum;
at night
scabies:
see serpiginous burrows where?
treat with _____ cream.
webspace of hands/feet + flexor surfaces;
permethrin
