Lecture 2 - Various Derm conditions

Question 1

psoriasis:

papules and _____ with silvery ______, especially on ____ surfaces. besides joints, what is often also affected?

Answer 1

plaques, scaling;
extensor;
nail (pitting)

Question 2

psoriasis:

____ sign is pinpoint bleeding from exposure of ____ _____ when scales are scraped off

Answer 2

auspitz;

dermal papillae

Question 3

contact dermatitis:
type ___ HSR;
name 2 causes;
characterized by pruritic oozing rash with vesicles

Answer 3

4;
poison ivy, nickle

also penicillin, detergents

Question 4

atopic dermatitis:
type \_\_\_ HSR;
commonly on skin \_\_\_\_\_;
chronic form is called \_\_\_\_;
pruritic and itchy

Answer 4

1;
flexures;
ezcema;

Question 5

what is another name for seborrheic dermatitis?

associated with what fungus?

Answer 5

dandruff;

mallassezia furfur

Question 6

____ ______ is characterized by erythema and scaling on chronically edematous legs from _____ hypertension

Answer 6

stasis dermatitis;

venous

Question 7

dyshidrotic dermatitis:
classically occurs where?
older or younger adults?

Answer 7

palms and soles;
younger

recurrent, pruritic vesicular eruption

Question 8

impetigo:
typically caused by ______;
contagious or no?;
_____ colored crusting

Answer 8

staph aureus (also strep pyogenes;
very contagious;
honey

macules–>pustules

Question 9

_____ _____ is characterized by a herald patch folled days later by multiple scaly erythematous plaques. often in “____ _____” distribution on trunk

Answer 9

pityriasis rosea;
christmas tree (distributed on langer lines)

Question 10

pityriasis rosea:
due to reactivation of herpes ____;
self resolving or no?

Answer 10

6 or 7;

yes after weeks

Question 11

erythema multiforme:
name an infection it is caused by =
name 2 drugs its associated with

Answer 11

mycoplasma pneumoniae (also HSV);

sulfa drugs, beta lactams

varied presentation

Question 12

what is another name for urticaria?
due to ______ degranulation;
characterized by dermal edema and ______ dilation

Answer 12

hives;
mast cell;
lymphatic channel

Question 13

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

Answer 13

acrochordon;
skin folds (esp obese people);
collagen

Question 14

seborrheic keratosis:
lesions are said to look “___ ___”;
greasy, pigmented epithelial proliferation with ____ filled cysts (horn cysts);
____ _____ = sudden appearance of multiple keratosis, indicating a ____ malignancy

Answer 14

stuck on;
keratin;
leser-trelat sign;
GI

Question 15

_____ _____ = pre-SCC lesions caused by sun exposure. small, rough, erythematous brownish plaques.

Answer 15

actinic keratosis

Question 16

cutaneous horns:
made of compact _____;
associated with benign, malignant lesions, or both?

Answer 16

keratin;

both

Question 17

lentigo:
seen in old or younger patients?
due to what?
increased melanosomes or increased melanocytes?q

Answer 17

older;
sun exposure;
melanocytes

Question 18

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

Answer 18

melanocytes;
junctional;
intradermal

Question 19

angioma/hemangiomas:
what are they due to?
do these blanch?

Answer 19

overgrowth of blood vessels;

yes

Question 20

a _____ ____ is a polyploid lobulated capillary hemanioma that can ulcerate or blood. associated with _____ and _____

Answer 20

pyogenic granuloma;

trauma, pregnancy

Question 21

acne:
androgens cause an increase in _____ production. also, there is abnormal keratinocyte _______ and blockage of the follicle. associated with colonization by what bacteria?

Answer 21

sebum;
desquamation;
propionibacterium acnes

Question 22

_____ _____ are small papules with scaly tops. usually located on the outer aspect of both _______ (Symmetric)_

Answer 22

keratosis pilaris;

arms

Question 23

keratosis pilaris:

due to abnormal keratinization of the lining of the _____

Answer 23

hair follicle

Question 24

verrucae are caused by ____ typically. _____ hyperplasia

Answer 24

HPV;

epidermal;

Question 25

molluscum contagiousum:

_____ papules caused by _____. keratinocytes show ______ inclusions aka molluscum bodies

Answer 25

umbillicated;
poxvirus;
cytoplasmic

Question 26

_____ causes hot tub folliculitis

Answer 26

pseudomonas

Question 27

cysts:

due to _____ deposits beneath the epidermis.

Answer 27

keratin

Question 28

scabies:

caused by a _____that burrows into the stratum _____. causes pruritis that is worse when?

Answer 28

mite;
corneum;
at night

Question 29

scabies:
see serpiginous burrows where?
treat with _____ cream.

Answer 29

webspace of hands/feet + flexor surfaces;

permethrin