1. A patch test involves applying a chemical to the skin and then watching for dermatitis to develop 48 –96 h later. The test result ++ Strong reaction means?

    1. Minimal erythema.
    2. Glazed appearance and increased skin markings
    3. Erythema and may be papules.
    4. Palpable erythema and/or vesicle
    5. erythema and petechia
      • Answer

  2. Clinically lichen planus will shows ?

    1. the nails are unaffected
    2. the Köbner phenomenon is rare
    3. excoriations are common
    4. scalp scarring alopecia
    5. White symptomatic oral lacy lines
      • Answer
  1. A patient gets recurrent urticaria while doing exercising and on exposure to sunlight. Which of the following is the most likely cause?
    1. Chronic idiopathic urticaria
    2. Solar urticaria
    3. Universal dermographism
    4. Cholinergic urticaria
    5. aquagenic urticaria
      • Answer

  1. hair dye Dermatitis caused by

    1. oak.
    2. nickel
    3. Quratinum 15
    4. formaldehyde .
    5. paraphenylenediamine.

  2. Ecthyma is skin infection characterized by ulceration that is covered by adherent crust. Ecthyma is caused by

    1. Sarcoptes scabiei.
    2. Staphylococcus aureus.
    3. Leishmania aethiopica.
    4. Mycobacterium leprae.
    5. Treponema pallidum.
  1. In tinea capitis, the trichophyton that produce pale green fluorescence on Wood’s light examination is
    1. Trichophyton schoenleinii.
    2. Trichophyton rubrum.
    3. Trichophyton mentagrophytes.
    4. Trichophyton verrucosum.
    5. Trichophyton interdigitale
  1. In dermatitis herpetiformis all true Except:
    1. more common in males.
    2. treatment of choice is Dapsone.
    3. crops of intensely pruritic deeply seated vesicles
    4. cutaneous manifestation of gluten sensitive enteropathy.
    5. present in 90%of patient with celiac disease
  1. majority of patients with pemphigus vulgaris presented with which one of the followings
    1. flaccid blisters fulled with clear fluids on scalp,neck,and face.
    2. painful mucosal erosions.
    3. most commonly affected genital and oral mucosa.
    4. flaccid blisters on erythematous base.
    5. blisters distributed all over skin surface including Palmer surfaces.
  1. All of the following drugs are used in urticaria except
    1. Cyproheptadine
    2. Hydroxyzine
    3. prednisolone
    4. atropine
    5. ranitidine

  1. The mainstay of scabies treatment is the application of topical scabicidal agents, with repeat application in 7 days. The safest scabicidal agent in pregnancy is:

    1. Sulfur ointment.
    2. Lindane cream.
    3. Permethrin cream.
    4. Crotamiton cream.
    5. Benzyl benzoate lotion

  2. early step in pathogenesis of acne vulgaris:

    1. follicular obstruction with comedones formation.
    2. increase free fatty acids
    3. increase in sebum production due to increase in androgen hormone.
    4. increase in propionibacterium acne colonization.
    5. local infiltration of CD4 T-cell lymphocytes with increase in perifollicular IL -1