Skin

Question 1

MC cutaneous disorder encountered in medical practice

Answer 1

acne vulgaris

Question 2

prime defect of acne vulgaris

Answer 2

abnormal response of pilosebaceous apparatus to androgenic stimulation –> blockage of abnormal/excessive keratin –> comedone/blackhead

Question 3

comedones become inflamed b/c of irritating effect of

Answer 3

free fatty acids formed by enzymatic effect of common skin bacteria upon sebum

Question 4

idiopathic skin condition MC

Answer 4

Alopecia areata

Question 5

prognosis of alopecia aereata is usually ______; especially if _____

Answer 5

poor

recurrent and/or extensive episodes

Question 6

idiopathic condition, although may be due to viral infxn, food/drug allergies and psychogenic factors – small, discrete and painful

Answer 6

aphthous stomatitis (canker sores)

Question 7

aphthous stomatitis needs to be differentiated from

Answer 7

Vincent’s angina

Question 8

spirochete infxn, which primarily involves gingival and produces painful, red and swollen gums

Answer 8

vincent’s angina

Question 9

characteristics of aphthous stomatitis ulcers

Answer 9

shallow
painful
white base surrounded by reddened area

Question 10

MC locations for aphthous stomatitis

Answer 10

buccal mucosa, tongue, inner lips, gums

Question 11

Atopic dermatitis AKA

Answer 11

generalized neurodermatitis

Question 12

chronic, reoccurring idiopathic disease that hereditary/allergy and psychogenic factors are significant ; cannot vaccinate during active phase

Answer 12

atopic dermatitis (generalized neurodermatitis)

Question 13

characteristics of atopic dermatitis lesions

Answer 13

bilateral
symmetric
may occur anywhere on body

Question 14

3 distinguishing features of atopic dermatitis

Answer 14

pruritus, dry skin, and sweat retention

Secondary infxn is MC

Question 15

most important difference btwn atopic dermatitis and other eczemas

Answer 15

does NOT appear before 2 months old; often clears up at 2-3 y.o., but flare ups followed by remission may occur in childhood/puberty/adolescence and adulthood

Question 16

thickening of skin, exaggeration of skin marks (lichenification), papule, excoriations (scratch marks) hyper or hypopigmentation

Answer 16

atopic dermatitis (generalized neurodermatitis)

Question 17

oozing and crusting seen in _____; MC locations are:

Answer 17

infantile atopic dermatitis (generalized neurodermatitis)

scalp and face

Question 18

MC locations for childhood/adulthood atopic dermatitis

Answer 18

antecubital and popliteal areas, neck, face (eyelids), ears, wrists and hands

Question 19

disease caused by repeated scratching or rubbing of skin; MC In women; usually only a SINGLE lesion; usually primary and expression of underlying emotional disorder

Answer 19

circumscribed neurodermatitis (lichen simplex chronicus)

Question 20

Condition in which basic lesion is a localized patch of “elephant hide” - scaling, sharply defined, with increased prominence of skin markings – due to patient induced friction

Answer 20

circumscribed neurodermatitis (lichen simplex chronicus)

Question 21

MC locations for circumscribed neurodermatitis (lichen simplex chronicus)

Answer 21

nuchal scalp and neck
inner thighs
lateral leg regions

Question 22

common disorder caused by reactions to primary irritants or sensitizing agents

Answer 22

contact dermatitis (dermatitis venenate)

Question 23

clinical features of contact dermatitis (dermatitis venenate)

Answer 23

redness, weeping and vessicles/bullae, swelling and scaling in well-defined patches; itching often seere

Question 24

MC locations for contact dermatitis (dermatitis venenate)

Answer 24

back of hands, neck, eyelids, face, genitalia and legs

Question 25

MC drug that causes lesions/reactions in people

Answer 25

penicillin

Question 26

Condition that occurs in period bouts from weeks-months, idiopathic, local factors, drugs, diet and psychogenic stimuli may be of significant

Answer 26

Dyshidrosis (Pompholyx)

Question 27

catchall term that includes a wide variety of cutaneous diseases typed by vesiculation, erythema and swelling with various degrees of weeping, fissuring, scaling and pustulation

Answer 27

eczema

Question 28

Diaper rash may be associated with (3) conditions

Answer 28

atopic eczema seborrheic dermatitis moniliasis

Question 29

ear eczema (otitis externa) is caused by (3)

Answer 29

seborrheic dermatitis psoriasis localized or generalized neurodermatitis

Question 30

When ear eczema is caused by discharge from caruncle/otitis media/infxn, it is called

Answer 30

infectious eczematoid dermatitis

Question 31

disorder due to prolonged contact with soaps, detergents and other cleansing agents employed by housewives, dishwashers, etc

Answer 31

hand eczema (housewife's dermatitis)

Question 32

most likely affected area of hands involved in *CONTACT dermatitis*

Answer 32

dorsa of hands and fingers MC than palms

Question 33

in reactions secondary to tine pedis, usually _____ evident

Answer 33

fungus infection

Question 34

most likely affected area of hands involved in *ATOPIC dermatitis*

Answer 34

dorsa of hands, usually history of allergy, antecubital and popliteal involvement

Question 35

_____ manifests as discrete *OVAL* patches

Answer 35

nummular eczema

Question 36

condition characterized by round, coin-shaped lesions, found MC in older patients with dry skin

Answer 36

nummular eczema | "the skin weeps for the patient who can't weep for himself"

Question 37

disease produced by drugs, infections, systemic disorders, but most cases are *IDIOPATHIC*

Answer 37

erythema multiforme

Question 38

therapy for erythema multiforme

Answer 38

symmetric lesions appear suddenly on hands/feet/face/mucous membrane and therapy is self-limiting within 1-4 weeks

Question 39

severe variant of erythema multiforme with extensive bulls lesions involving skin, eye, mouth and mucous membranes - accompanied by signs of systemic toxicity

Answer 39

Stevens-Johnson Syndrome