Dermatology

Question 1

MCQ What part of the body does not contain sebaceous glands?

Answer 1

palm and sole of feet

Question 2

MCQ Features of follulitis

Answer 2

Folliculitis
* Infection of hair follicle
* Usually heals without scarring
* Caused by Staph aureus
* Tx: Warm saline compresses. If does not resolve spontaneously in 1
2 weeks, topical mupirocin. Oral dicloxacillin ( very rare)

Question 3

MCQ Erythrasma is caused by what and how is it diagnosed?

Answer 3

 Results in pink patches to brown scales, may be pruritic.
Lichenification and hyperpigmentation common
 Caused by Corynebacterium minutissimum
 Commonly found in intertriginous areas/ toe webs
 Prevalent among diabetics, obese, and in warm climates,
worsened by wearing occlusive clothing
 DDx: tinea, acanthosis
 Dx: KOH neg, Wood’s lamp : coral pink fluorescence
 Tx: oral erythromycin 1-2 weeks
 Antbx soap to prevent recc

Question 4

MCQ what is kerion
Does it destroy hair follicles?
Can you use steroids on it?
What is it caused by?

Answer 4

• Severe case of scalp ringworm (severe tinea capitis except unlike tinea capitis it presents with scarring hypoplasia)
• kerion destroys hair follicles
  *Appears as inflammed, thickened pus
  filled area, sometimes accompanied with
  fever
• Zoophilic dermatophytes is the usual
  cause
• Exaggerated response of immune system or an allergic reaction to fungus
• Tx : oral antifungals, oral steroids (for
  severe inflammation) but steroids can worsen T.capitis

Question 4

MCQ Types of tinea diseases

Answer 4

Tinea capitis - scalp
Tinea corporis - trunk
Tinea ungium - nail
Tinea manus - hand
Tinea crura - groin

Question 5

MCQ: types of T. Pedis

Answer 5

Mocassin
Interdigital
Vestibullous

Question 6

MCQ Pityriasis is known as a what type of disease?

Answer 6

Self-limiting disease