Derm

Question 1

Associated condition with sudden onset severe psoriasis

Answer 1

HIV

Question 2

Little to no itching. Overwhelming infection. Presents insidiously with poorly defined erythematous patches that progress to prominent scales, crusting and malodorous fissures in elderly or immunocompromised

Answer 2

Crusted Scabies

Question 3

Lesion that looks similar to squamous cell carcinomas. Found on sun exposed skin of middle aged or elderly individuals. Has a period of rapid growth over 4-9 months, then stabilizes then spontaneously regresses

Answer 3

Keratoacanthoma

Question 4

Abrupt onset painful edematous papules, plaques or ndoules on head, neck and upper extremities. Fever <38 with possible systemic symptoms (Arthrlagias, myalgias, malaise, headache). CBC demontstrates neutrophilic leukocytosis. Biopsy demonstrates dense neutrophilic infiltrate without vasculitis. Can be drug induced, malignancy associated, or post- recent infection, IBD, pregnancy

Answer 4

Sweet syndrome

Question 5

Treatment of rosacea

Answer 5

A topical metronidazole is most frequently prescribed for mild to moderate rosacea. Can also use azelaic acid. With more severe papulopustular rosacea - may require oral tetracyclines or erythromycin

Question 6

Extremely painful subQ nodules that can progress to necrotic ulcers with intact peripheral pulses. More common in ESRD on HD taking warfarin. May have high iPTH, phos and calcium on labs

Answer 6

Calciphylaxis - AKA calcific uremic arteriolopathy.

Question 7

Most common in adolescents and young adults. STarts with single large scaly salmon colored lesion, but numerous smaller lesions develop rapidly after. Can be pruritic

Answer 7

Pityriasis rosea

Question 8

Depigmented patches of skin. Usually presents by age 20-30. ASsociated most frequently with thyroid disease and type 1 diabetes

Answer 8

Vitiligo

Question 9

Painful erythematous patches that rapidly progress to several steril pustules in a patient with a history of psoriasis with recent pregnancy, infection or withdrawal of systemic or high-potency topic steroids as a trigger

Answer 9

Generalized pustular psoriasis

Question 10

Benign lesions on lips and ears of elderly patients. Gray-blue to purple papulonodules that disappear when compressed.

Answer 10

Venous lakes

Question 11

A syndrome of older adults characterized by intermittent ecchymotic lesions primarily on hands and forearms due to blood vessel fragility after years of sun-related damage

Answer 11

Senile (solar) purpura

Question 12

Pruritc well-demarcated red brown plaques most commonly in interdigital and intertriginous areas. Those with impaired immune systems have higher risk. Will appear coral-red on wood’s lamp exam

Answer 12

Erythrasma due to corynebacterium minutissimum