This document contains 70 multiple choice questions related to dermatology. The questions cover topics like treatment of warts, causative agents of various skin infections, clinical presentations of conditions like acne and psoriasis, commonly used diagnostic tools, and more. The correct answer is provided for each question.

1. Dermatology_2019
1. Warts can be treated by all of the following EXCEPT:
a. Laser.
b. Cryotherapy.
c. Electrocautery.
d. Intralesional steroids.
e. Autosuggestion.
2-Dermatophytes cause infection of:
a. Non-hairy skin.
b. Hair.
c. Nails.
d. (a) + (b).
e. (a) + (b) + (c).
3-Acne vulgaris:
a. May affect palms and soles.
b. Is a disease of sweat glands.
c. Commonly affects the scalp.
d. Is a disease of adolescents.
e. Causes itching which increases by night.
Scabies is a:
-
4
infection.
a) Viral
b) Bacterial infection.
c) Parasitic infestation.
d) Fungal infection.
e) Mycobacterial infection
Histamine is the chief mediator of:
-
5
a) Contact dermatitis.
b) Urticaria.
c) Atopic dermatitis.

2. d) Discoid lupus erythematosus.
Psoriasis.
e)
Acne vulgaris is:
-
6
Cured by topical steroids.
-
a
An infectious disease.
-
b
Treated by retinoids in its nodulocystic forms.
-
c
A disease affecting skin and mucous membranes.
-
d
A disease of sweat glands
-
e
observed in alopecia areata:
The following may be
-
7
Itching.
-
a
Comedones.
-
b
Vesicles.
-
c
Adherent scales.
-
d
Exclamation mark hairs.
-
e
. Kerion:
8
a. Is a boggy swelling simulating an abscess.
b. May lead to scarring alopecia.
c. Is usually caused by fungi of animal origin.
.
. All of the above
d
e. None of the above.
The main complaint in vitiligo is:
-
9
a. Itching.
b. Pain.
c. Burning sensation.
d. All of the above.
e. None of the above.
All of the following are bacterial infections EXCEPT:
-
10
Impetigo.
-
a
Erysipelas.
-
b
Furuncles.
-
c

3. Cellulitis.
-
d
Kerion.
-
e
The skin appendages include all of the following EXCEPT:
-
11
Sebaceous glands.
-
a
Eccrine sweat glands.
-
b
Melanocytes.
-
c
Apocrine sweat glands.
-
d
Hair.
-
e
:
EXCEPT
Psoriasis may present by all of the following
-
12
.
well demarcated silvery scaly plaques
-
a
Joint affection.
-
b
Pustular eruption.
-
c
Nail pitting.
-
d
Cicatricial (scaring) alopecia.
-
e
Cutaneous examination includes examination of:
-
13
Skin.
-
a
Hair.
-
b
Nails.
-
c
Mucous membranes.
-
d
All of the above.
-
e
Wood’s light is used in the diagnosis of:
-
14
versicolor.
pityriasis
-
a
.
vitiligo
-
b
.
Tinea Capitis
-
c
All of the above.
-
d
None of the above.
-
e
the
Mucous membrane affection may occur in all of
-
15
following EXCEPT:
Lichen planus.
-
a
Lupus erythematosus.
-
b

4. Erythema multiforme.
-
c
Herpes simplex.
-
d
Acne vulgaris
-
e
A vesicle can be differentiated from a bulla by:
-
16
Its size.
-
a
Its location.
-
b
Having a wall.
-
c
It’s content.
-
g
color.
Its
-
f
. Psoriasis may be manifested clinically by all of the
17
:
EXCEPT
following
Erythroderma.
-
a
Pustular lesions.
-
b
Arthropathy.
-
c
.
Nail pitting
-
d
Bullous lesions.
-
e
The following type of urticaria may be life threatening:
-
18
urticaria.
Papular
-
a
Cholinergic urticaria.
-
b
Dermographism.
-
c
Angioedema.
-
d
The immunoglobulin which is usually elevated in atopics is:
-
19
Ig G.
-
a
Ig M.
-
b
.
Ig E
-
c
Ig D.
-
d
s
Psoriatics with extensive skin involvement and hepati
-
20
treated by:
cirrhosis can be
.
Narrow band UVB
-
a
Methotrexate.
-
b

5. Systemic steroids.
-
c
Systemic photochemotherapy (PUVA)
-
d
1- All of the following are primary skin lesion except :
2
A: Tumour
B: Weal
C:Comedo
D:Kelloid
E: vesicle
2- The largest number of sweat gland in the body are :
2
A: Holocrine
B: Apocrine
C: Eccrine
D.:sebaceous gland
E: Meibomian gland
3. Wood's light examination is :
2
A. Handheld mercury vapor bulb
B. Handheld zink vapor bulb
C. Handheld iron vapor bulb
D. Handheld nitrun vapor bulb
E. Handheld lethium vapor bulb

6. 4. Microscopical examination for Scabies Scrapping is positive if :
2
A. We find eggs
B. We find fecal material
C. We find mite
D. We find all of the above
E. We find nothing of the above
5. In primary Syphilis the most accurate investigation is :
2
A. VDRL
B. Cultuse and sensitivity
C. Smear from chancer
D. RPR ( Rapid Plasma Reagin )
E. Complete blood picture
26. Darker people are dark thanks to :
A. Number of melanocyte
B. Activity of melanocyte
C. Size of melanocyte
D. size and number
E. number and activity
27. all are positive stimulus in pre existing melanocytic nevous in changing it to
malignancy except :
A. Increase in size
B. Itchy
C. Bleeding

7. D. Change in color
E. Well demarkated
Keratin constitutes:
-
28
a) Hairs.
b) Nails.
c) The outermost layer of the skin.
d) All of the above.
9. Ecthyma is deep seated skin infection the causitive agent is :
2
A. Staphylococcus aurius
B. Streptococcus pyogenes
C. bacillus
D. Staphylococcus and streptococcus
E. Non of the above
30. Toe nail onychomycosis the treat is :
A. Terbinafine 250mg/daily for 8 weeks
B. Itracanazole 250 mg/daily for 8 weeks
C. Fluconazole 150 mg/daily for 8 weeks
D. Terbinafine 250 mg/daily for 12 weeks
E. Itracanazole 250 mg/daily for 12 weeks
31. The nucleous is more obvious seen in the cell of :
A. Stratum lucidum
B. Stratum corneum
C. Stratum basale

8. D. Stratum granulosum
E. non of the above
32. Method of treat in BCC ( basal cell carcinoma )
A. Electro cutary
B. Cryotherapy
C. Surgery
D. Radio frequency
E. all of the above
33. Dry , scaly , chronic hand dirmatitus better treat :
A. Steroid crème
B. Steroid lotion
C. Steroid ointment
D. Steriod gel
E. Steriod injection
34. Finger tip unit measurement for local treat is equal nearly to:
A. 1g of crème
B. 0.5g of crème
C. 2g of crème
D. 0.1g of crème
E. 1.5g of crème

9. Dyshidrotic eczema is a type of
35
-
Endogenous eczema.
-
a
Exogenous eczema.
-
b
Contact eczema.
-
c
Atopic dermatitis.
-
d
36. Parakeratosis is :
A. Increase in the thickness of stratum corneum
B. Retention of nuclei in the stratum corneum
C. Premature keratanisation of cells
D. Increase of thickness of granular layer
E. Increase of thickness of prickle cell
37. Acantholysis loss of inter cellulus bridges in the :
A. Horny cell layer
B. liucedum cell layer
C. Stratum granulosum
D. Prickle cell layer
E. Dermal – epidermal junction
38. Staphylococcal scaled skin syndrome (SSSS) is caused by :
A. streptococcal pyogene
B. staphalococcal aurius type 1
C. staphalococcal aurius type 2
D. epidermolytic toxin
E. gonococcus

10. 39. Treatment of choice for erysipelas :
A. Local erythromycine
B. Phenoxymethyl penicilline orally
C. gentamycine I.M
enicilline I.M
D. P
E. cephalosporine orally
40-The skin is considered:
a- An endocrine organ.
b- A secretory organ.
c- A defensive organ.
d- An excretory organ.
e- All of the above.
41-All of the following are side effects of isotretinoin, EXCEPT:
A:Elevated liver enzymes
B: Elevated Triglicerides
C: Renal failure
D: Chelitis
42-All of the following are side effects of isotretinoin ,EXCEPT:
A: Infertility
B: Muscle pain
C: Dry eyes
D:Skin dryness
E:Back pain
43-All of the following are side effects of topical corticosteroid use, EXCEPT:
A:Striae
B: Telengectasia

11. C: Skin hypertrophy
D: Increased tendency of skin infections
E: Hirsutism
44- One of the following skin lesios can be seen in acne but should not be seen in rosacea:
A:Papule
B: Commedon
C: Pustule
D:Nodule
E:Seborrhea
45- 30 year old female Patient known case of hepatitis C , came to your clinic complaining of
itchy rash of 3 weeks on volar surface of wrist and ankle, on P/E :multiple purplish papules ,
flat surface , polygonal ,which of the following is the most likely diagnosis:
A: Lichen Planus
B :Psoriasis
C:Erythema nodosum
D:Urticaria
E: Pytriasis rosea
46-Koebner phenomena can be seen in all of the following diseases, EXCEPT:
A:Vitiligo
B: Psoriasis
C: Lichen planus
D: Eczema
47-All of the following cells usually reside in epidermis, EXCEPT:
A: Keratinocytes
B: Melanocytes
C:Langerhans cells

12. D:Fibroblasts
48- 17 year old male patient came to your clinic complaining of skin rash that appeared 2
days ago. Rash started (herald patch) on lower abdomen ,then spreads to chest and back as
slightly erythematous scaly macules in christmas tree distribution . History of URTI 2 weeks
ago. The most likely diagnosis:
A:Pitryasis Rosea
B: Lichen planus
C:Eczema
D:Acne
E:Warts
49- 8 year old child complaining of itchy skin lesion on calf of 2 weeks that is expanding,
patient has a history of recent kitty rearing at home. On P/E annular erythematous scaly
patch with central clearing , the most approbriate next step is :
A: Give topical clobetasol probionate ointment
B: Give fucidic acid cream
C:Do KOH test
D: Do allergy panel test
E: Do patch test
50- Recurrent cold sores ( herpes orolabialis) caused by :
A: HSV1
B: HSV2
C:HSV3
D:HSV4
E:HSV5

13. 51-All of the following can be considered as sexually transmitted disease, EXCEPT:
A:herpetic genital ulcer
B:Genital wart
C:Syphilis
D:Psoriasis
E: Crabe lice
52- Psoriasis can affect all of the following, EXCEPT:
A: Skin
B:Scalp
C:Nails
D: Joints
E:Muscles
53- The causitive organism in pytiriasis versicolor is :
A: Malasezzia furfur
B: Trichophyton rubrum
C: Trichophyton Concentricum
D:Trichophyton Schoenleini
E: Microsporum Audounii
54 -All of the following can cause hair loss, ECXEPT:
A:Hypothyroidism
B: Systemic Lupus Erythematosus
C: Long coarse of corticosteroid
D: Anemia
E:Systemic illnesses

14. 55- Which is the most common organism that cause tinea pedis :
A: Trichophyton Rubrum
B: Malassezia Furfur
C: Trichophyton Concentricum
D:Trichophyton Schoenleini
E: Microsporum Audounii
56-All of the following are differential diagnosis for itchy scalp, EXCEPT:
A:Seborrheic Dermatitis
B:Psoriasis
C:Lice
D: Telogen effluvium
E:Lichen simplex chronicus
57- Which of the following can be considered as a revirsable type of hair loss:
A: Post burn Scar
B: post surgery
C: Lichen planopilaris
D: Alopecia areata
E:Post long coarse of radiation therapy
58- Trichotillomania mostly related to :
A: Liver disease
B: Psychological stress

15. C:Ophthalmological impairment
D: Genetic factors
59- Acanthosis nigricans can be seen in :
A:Diabetis Mellitus
B: Poly Cystic Ovarian Syndrom
C: psorasis
D: A+B
E: All of the above
60- Oral isotretinoin is pregnancy category:
A: Category A
B: Category B
C: Category C
D : Category D
E: Category X
61 – Hand , Foot and Mouth disease is most commonly caused by what?
A: Parvovirus B-19
B: Human Herpes virus -6
C: Echovirus
D: Coxsackievirus A16
E: Human papilloma virus type 16
62- Which clinical sign is typical of milia?
A: Reddish-brown papules
B: Plaques

16. C: Large domed papules
D: Tiny white dome – shaped cysts
E: Linear distribution
63: What is the cause of pitryasis rosea:
A: Bacterial
B:Genetic
C: parasitic
D: Fungal
E: Unknown at this time
64: What is the best treatment for this patient with extensive psoriasis, nail psoriasis and
joint pain ?
A: Topical corticosteroid
B: Systemic methotrexate
C: Intralesional Corticosteroid
D: PUVA treatment
E:Irradiation Therapy
65: Which of the following statements is true of rosacea?
A: Laser treatments are very effective for facial flushing
B: Response tantibiotic to systemic antibiotics is typically seen after 6 months
C: Patients are more likely to have olive skin
D: It is a form of acne
E: It can be aggrevated by topical steroid
66: What is the pathognomonic lesion of scabies:
A: linear vesicles

17. B: Wavy, linear burrows
C: Nodules
D: Hyperkeratotic Plaques
E: None of the above
67:Which of the following is used to treat seborrheic dermatitis?
A:Cimitidine
B: Griseofulvin
C: Lithium
D:Ketoconazole
E:Tetracycline
68: Onset of varicella zoster may be triggered by one or more of the following factors:
A: A second exposure to the varicella virus
B: Neoplasms and distant infections
C: Stressful events
D: Certin medications
E: Any of the above
69: Stratum Lucidum is seen in:
A: Hair and Nails
B: Palms and Soles
C: Normal epidermis
D: Scalp
70 – Verruca vulgaris:
A: Autoinoculable

18. B:Contagious
C:Can Spontaneously disappear
D:All of the above
71- Erythema Infectiosum is caused by :
A: Echovirus
B: Parvovirus
C: Paramyxovirus
D: Coxsackie virus
72- "Slapped cheeck" appearance is typically seen in :
A: Mumps
B: Rubella
C: Erythema Infectiosum
D: Sixth disease
73- The drugs used in the treatment of psoriasis are all , EXCEPT:
A:Methotrexate
B: Coal tar
C: Retinoids
D: Systemic steroids
74- Pitting of nails is characteristic of :
A: Psoriasis
B: Warts
C: Ring worm infection
D: Iron deficiency anemia

19. 75- PUVA therapy can be used to treat :
A: Psoriasis
B: Atopic dermatitis
C: Alopecia Areata
D:Vitiligo
E: All of the above
76- Auspitz sign is positive in :
A: Icthyosis Vulgaris
B:Warts
C: Psoriasis
D:Urticaria
77- Oral retinoid is indicated in the treatment of:
A: Severe Acne Vulgaris
B: Pemphigus Vulgaris
C:Lupus Vulgaris
D: Erythema Multoforme
78: Lupus Pernio is seen in :
A: Porphyria
B: Sarcoidosis
C: Tuberous Sclerosis
D: Pellagra

20. 79- Acneform Eruptions are seen with:
A: Anabolic Steroids
B: Bromides and Iodides
C: B12 injections
D: All of the above
80 – Which of the following viruses causes Molluscum Contagiosum:
A: Herpes Simples virus
B:Poxvirus
C:Human Pappiloma virus
D:HIV
E: none of the above