5 - dermatology mcqs - 1 to 6

1) Examples of Scarring alopecia are all except

a. Cutaneous lupus

b. Lichen planus

c. Alopecia areata

d. Sarcoidosis

Answer (c ) Alopecia Areata

Reference: Harrison 16^th Edition Page 298

2) Herald patch is commonly seen with

a. Pitryasis rosea

b. Pityriasis Versicolor

c. Erysipela

d. Dermatophytosis

Answer (a) Pityriasis Rosea

Reference: Harrison 16^th Edition Page 292

3) Erythema nodosum leprosum occurs in

a. Lepro matous leprosy

b. Tuberculoid leprosy

c. Both

d. None

Answer (a) Lepramatous Leprosy

Reference: Harrison 16^th Edition Page 969

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4) Wood Lamp not useful in

a. Tinea capitis

b. Warts

c. Tinea versicolor

d. Erythrasma

Answer b) Warts

Reference: SARP - SARP 6th Edition : Page PARAS - PARAS 4th Edition : Page Sure Sucess in PG Entrance 1st Edition :

Conditions	Finding
Flexures	Accentuated
Post inflammatory	Fades
Vitiligo	Totally white
Erythrasmna(C.Minutissimum)	Coral Red
Tinea Capitis	Brilliant Green
Tinea Versicolor	Dull Yellow
Pseudomonas	Pale Blue/Green
Tuberous Sclerosis (Ash Leaf)	Blue white
Urine in Porphyria Cutanea Tarda	Pinkish Red

5) Poikiloderma presents with

a. Atrophy,

b. Telangiectasia,

c. Pigmentary changes

d. All of the above

Answer d: All of the above

Reference: Poikiloderma of Civatte refers to erythema associated with a mottled pigmentation seen on the sides of the neck, most commonly in women. Civatte first described the condition in 1923. Poikiloderma of Civatte is a condition affecting the skin. Many consider it to be a reaction pattern of the skin and not a disease. The term poikiloderma refers to the combination of atrophy, telangiectasia, and pigmentary changes (both hypopigmentation and hyperpigmentation). Poikilodermatous lesions may be seen in certain genodermatoses (Rothmund-Thomson syndrome, Bloom syndrome, dyskeratosis congenita), in connective tissue diseases (dermatomyositis, lupus erythematosus), in parapsoriasis/mycosis fungoides, and in radiodermatitis.

6) PUVA therapy is indicated in

a. Psoriasis

b. Vitiligo

c. Alopecia Areata

d. Any of the above

Answer d) Any of the above

Reference: Harrison 15^th Edition Chapter 57

4 - acne mcqs

Question 1
What is not true with regard to Propionibacterium acnes:
It is an anaerobic, gram-positive bacterium
It uses sebum as a nutrient for growth
Is not a normal inhabitant of the skin------------------
Its number correlates with the concentration of triglycerides in sebum

Question 2
The most pathognomic sign of acne is presence of:
Comedone--------
Pustule
Papule
Cyst

Question 3
Factor that is not responsible for acne flare-up:
Squeezing at blemishes
Oily food------------
Changing hormonal levels in adolescent girls
Hard scrubbing of the skin

Question 4
Which of the following is not responsible for the black colour of the open comedones (blackheads):
Oxidation of melanin
Dirt--------------
Interference in transmission of light through compacted epithelial cells
Presence of certain lipids in sebum

Question 5
According to Global Acne Grading System (GACS), acne is considered moderate if Global score is:
1-18
19-30------------
31-38
>39

Question 6
Unique therapeutic option for female acne sufferers, particularly those seeking contraception is:
Contraceptive containing estrogen-------------
Contraceptive containing only progesterone
Any of the above
None of the above

Question 7
Which of these medications can cause acneiform lesions:
Corticosteroids-------------
Tretinoin
Azelaic acid
Adapalene

Question 8
Clues that help to determine whether acne is due to an excess of androgen hormones are:
Hirsutism
Premenstrual acne flares
Irregular menstrual cycles
All the above--------------

Question 9
What is the minimum time for which one should wait before switching to a new therapy for acne:
2-3 weeks
6-8 weeks--------------
4 –5 months
10-12 months

Question 10
To avoid complications which test should be done in a married female before starting Isotretinoin treatment for acne:
Liver function test
Pregnancy test-------------
Glucose tolerance test
Renal clearance test

Question 11
Sudden and profuse lesions erupting after the age of thirty call for investigations of which of the following:
Pituitary
Adrenal cortex
Gonads
All the above-------------

Question 12
Which of these drug suppresses all the four aetiological factors responsible for acne:
Isotretinoin-------------
Tretinoin
Clindamycin
Benzoyl peroxide

Question 13
Tretinoin is used as a topical agent for treatment of acne because of it’s:
Comedolytic effect------------
Keratolytic effect
Bactericidal effect
All of the above

Question 14
Which of these is used as an oral medicine for acne:
Azelaic acid
Tretinoin
Adapalene
Isotretinoin-------------

Question 15
Bleaching of hair is a side effect associated with which of the following medications for acne:
Sulfur
Benzoyl peroxide------------
Retinoids
Isotretinoin