31 - AIIMS november 2001 dermatology mcqs with answers

1q: acne vulgaris is due to involvement of ?

a. sebaceous gland
b. pilosebaceous gland
c. eccrine gland
d. apocrine gland

answer b. pilosebaceous gland

2q: a patient with psoriasis was started on systemic steroids. After stopping treatment ,patient developed generalized pustules all over his body . what is the most likely cause ?

a. drug induced reactions
b. pustular psoriasis
c. bacterial infections
d. septicemia

answer b. pustular psoriasis

3q: a patient presents with scarring alopecia, thinned nails, hypopigmentation, muscular lesions over trunk and oral mucosa. The diagnosis is ?

a. psoriasis
b. leprosy
c. lichen planus
d. pemphigus

answer c. lichen planus

4q: a young boy presented with lesion over his right buttock which had peripheral scaling and central scarring. The investigation of choice would be ?

a. tzanck smear
b. KOH preparation
c. Biopsy
d. Saboraud’s agar

answer c. biopsy . the boy is having lupus vulgaris

30 - AIIMS may 2002 dermatology mcqs with answers

1q: treatment of pustular psoriasis is ?

a. thalidomide
b. retinoids
c. hydroxyurea
d. methotrexate

answer b. retinoids

2q: a patient presents with erythematous scaly lesions on extensor aspect of elbows and knee. The clinical diagnosis is got by ?

a. auspitz sign
b. KOH smear
c. Tzanck smear
d. Skin biopsy

answer a . auspitz sign

3q: actinic keratosis is seen in ?

a. basal cell carcinoma
b. squamous cell carcinoma
c. malignant melanoma
d. epithelial cell carcinoma

answer b. squamous cell carcinoma

4q: a 30 year old female presents with history of itching under right breast . on examination annular ring lesion was present under the breast. The diagnosis is ?

a. trichophyton rubrum
b. candida albicans
c. epidermophyton
d. microsporum

answer a . trichophyton rubrum

5q: wood’s lamp light is used in the diagnosis of ?

a. tinea capitis
b. candida albicans
c. histoplasma
d. Cryptococcus

answer a. tinea capitis

6q: a patient presented with multiple nodulocystic lesions on the face . the drug of choice is ?

a. retinoids
b. antibiotics
c. steroids
d. UV light

answer a. retinoids

29 - AIIMS november 2002 dermatology mcqs

1q: a 45 year old man has multiple grouped vesicular lesions present on the T 10 segment dermatome associated with pain. The most likely diagnosis is ?

a. herpes zoster
b. dermatitis herpetiformis
c. herpes simplex
d. scabies

answer a. herpes zoster

2q: a 28 year old patient has multiple grouped papulovesicular lesions on both elbows,knees,buttocks and upper back associated with severe itching. The most likely diagnosis is ?

a. pemphigus vulgaris
b. bullous pemphigoid
c. dermatitis herpetiformis
d. herpes zoster

answer c.dermatitis herpetiformis

3q: a child has multiple itchy popular lesions on the genitalia and fingers .similar lesions are also seen in younger brother. Which of the following is the most possible diagnosis ?

a. popular urticaria
b. scabies
c. atopic dermatitis
d. allergic contact dermatitis

answer b. scabies

4q: which layer of epidermis is underdeveloped in the very low birth weight infants in the initial 7 days ?

a. stratum germinativum
b. stratum granulosum
c. stratum lucidum
d. stratum corneum

answer d. stratum corneum

5q: scabies an infection of the skin caused by sarcoptes scabie is an example of ?

a. water borne disease
b. water washed disease
c. water based disease
d. water related disease

answer b. water washed disease

28 - common dermatological terms and their definitions

1. alopecia : hair loss , it may be partial or complete .

2. annular : ring shaped lesions

3. cyst : a soft, raised, encapsulated lesion filled with sesamoid or liquid contents .

4. herpetiform : grouped lesions

5. lichenoid : violaceous to purple, polygonal lesions that resemble those seen in lichen planus

6. milia : small ,firm, white papules filled with keratin

7. morbilliform : generalized , small erythematous macules and/or papules that resemble lesions seen in measles

8. nummular : coin shaped lesions

9. poikiloderma : skin that displays variegated pigmentation ,atrophy and telangiectases .

10. polycyclic : a configuration of skin lesions formed from coalescing rings or incomplete rings

11. pruritis : a sensation that elicits the desire to scratch. Pruritis is often the predominant symptom of inflammatory skin diseases ( example : atopic dermatitis , allergic contact dermatitis ) . it is also commonly associated with xerosis and aged skin . systemic conditions that can be associated with pruritis include chronic renal disease, cholestasis, pregnancy, malignancy, thyroid disease, polycythemia vera and delusions of parasitosis .

28 - secondary skin lesions description

1. lichenification : a distinctive thickening of the skin that is characterized by accentuated skin-fold markings

2. scale : excessive accumulation of stratum corneum

3. crust : dried exudate of body fluids that may be either yellow (that is serous crust) or red (that is hemorrhagic crust).

4. erosion : loss of epidermis without an associated loss of dermis

5. ulcer : loss of epidermis and atleast a portion of the underlying dermis

6. excoriation : linear, angular erosions that may be covered by crust and are caused by scratching .

7. atrophy : an acquired loss of substance . in the skin , this may appear as a depression with intact epidermis ( that is loss of dermal or subcutaneous tissue ) or as sites of shiny ,delicate ,wrinkled lesions ( that is epidermal atrophy )

8. scar : a change in the skin secondary to trauma or inflammation. Sites may be erythematous, hypopigmented or hyperpigmented depending on their age or character . sites on hair-bearing areas may be characterized by destruction of hair follicles .

27 - primary skin lesions description

MACULE : a flat , colored lesion of less than 2 cms in diameter , not raised above the surface of the surrounding skin. A freckle or ephelid is a prototype pigmented macule .

 PATCH : a large ( greater than 2 cms ) flat lesion with a color different from the surrounding skin. This differs from a macule only is size .

 

PAPULE : a small, solid lesion, less than 0.5 cms in diameter , raised above the surrounding skin surface and hence palpable . ( example : a closed comedone or whitehead, in acne ).

 NODULE : a larger ( 0.5 -5.0 cms ) , firm lesion raised above the surface of surrounding skin . this differs from a papule only in size . ( example : a dermal nevomelanocytic nevus ).

 

TUMOR : a solid, raised growth greater than 5 cms in diameter .

 PLAQUE : a large ( greater than 1 cm ) , flat topped , raised lesion , edges may either be distinct ( example : psoriasis ) or gradually blend with surrounding skin ( example : eczematous dermatitis ) .

 

VESICLE : a small, fluid-filled lesion , less than 0.5 cm in diameter , raised above the plane of the surrounding skin. Fluid is often visible , and the lesions are translucent{example : vesicles in allergic contact dermatitis caused by toxicodendron (poison ivy)}.

 PUSTULE : a vesicle filled with leucocytes . note : the presence of pustules does not necessarily signify the existence of an infection .

 

BULLA : a fluid filled ,raised , often translucent lesion greater than 0.5 cm in diameter .

 WHEAL : a raised , erythematous , edematous papule or plaque , usually representing short lived vasodilatation and vasopermeability .

 

TELANGIECTASIA : a dilated , superficial blood vessel .