Dermatology

Question 1

Venous stasis ulcer

Answer 1

medial maleolus

Question 2

Neuropathic ulcer

Answer 2

areas of trauma or friction (metatarsal heads under foot) surrounded by hyperkeratosis

Question 3

Arterial ulcer

Answer 3

severe PVD - painful, well demarcated, cool skin, absent pulses

Question 4

Miliaria - ie heat rash

Answer 4

small erythematous rash papules/papulovesicles with itching and burning - need cooling measure (A/C, cool bath)

Question 5

Toxic Epidermal Necrolysis

Answer 5

obtain skin bx, likely due to drug reaction - prodrome of fever, burning sensation then with blisters that slough off - denuded dermis - Nikolsky sign - IV steroids WORSEN course DO NOT USE - if infxn use ABX

Question 6

Keloid treatment

Answer 6

Intralesional steroid injection (triamcinolone) - if not then laser or radiation therapy - tend to extend beyond the injury area

Question 7

Hypertrophic scars

Answer 7

tend to remain in lesion area after surgery - regress over about 2 years

Question 8

Hiradrenitis suppurativa

Answer 8

painful, recurrent sterile abscesses sinus tract formation - scarring of axilla, inguinal, perianal, inframammory areas - can become secondarily infected - strong association with SMOKING - follicular occlusion

Question 9

Acne

Answer 9

NOT in axilla, groin, inframammory areas

Question 10

Pyogenic granulomas

Answer 10

bright red friable papules - crusted over in few weeks, from capillary proliferation, usually resolve spontaneously (only surgery if cosmetic issue)

Question 11

Sweet syndrome (Acute febrile neutrophilic dermatitis)

Answer 11

middle aged woman after URI - fever, arthralgia, myalgia and cutaneous lesion - individual tender, non-prurutic, well demarkated - papules/plaques -