Dermatology Flashcards

1
Q

Erythematous, scaly, palpable lesions overlying the MCP and intercarpal phalangeal joints

A

Grotton papules (dermatomyositis)

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2
Q

Labial adhesion treatment

A

Estrogen topical BID => surgery

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3
Q

Papulosquamous pruritic papules and plaques with purplish hue

A

Lichen planus (associated with Hepatitis C and drugs)

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4
Q

Reddish-violaceous or bluish-purplish mottling in reticulated patches with a sharp demarcation at midline

A

Cutis marmorata telangiectatica congenita (vs. physiological cutis marmorata which improves with warming). Cutis = skin, marmorata = marbling, tel = end, angi = vessel, ectasia = dilation

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5
Q

Erythematous indurated rash on cheeks in a well appearing asymptomatic child

A

Cold panniculitis

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6
Q

Rash associated with Crohn’s disease

A

Erythema nodosum (Erythematous, tender, subcutaneous nodules on the extensor aspects of the legs between the knees and ankles)

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7
Q

Diseases with erythema nodosum

A

Crohn’s disease, Behcet’s disease, bacterial gastroenteritis, strep throat, and disease with granulomas (TB, sarcoidosis, fungal)

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8
Q

Rash with kwashiorkor

A

Flaky paint dermatosis (Blanching erythema with overlying reddish-brown scaling and sharply demarcated raised edges) vs acrodermatitis enterohepatica (Zinc deficiency)

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9
Q

Pruritic and painful inflamed symmetrical vesicles/bullae on the palmar and lateral aspects of hands/feet

A

Dyshidrotic eczema (pompholyx)

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10
Q

Alopecia areata treatment

A

1st line: Intralesional corticosteroids or potent topical steroid => 2nd line: systemic steroids => 3rd line: methotrexate or cyclosporin

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11
Q

Newborn with vesicles and bullae with eosinophilia, and verrucous lesions (associations)

A

Incontinentia pigmenti (can have retinal detachment, strabismus)

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12
Q

Sudden appearance of numerous small, discrete, drop-like, erythematous papules and plaques, some with fine scaly appearance, most prominent on the trunk and proximal extremities. Spares palms and soles. (Dz and association)

A

Guttate psoriasis, 80% patients have recent or current streptococcal infection (tonsillopharyngitis, perianal cellulitis, erysipelas)

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13
Q

Widespread morbilliform rash that is particularly prominent on trunk, perineum, and intertriginous area (dz?)

A

Kawasaki disease

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14
Q

A maculopapular rash associated with numerous petechiae involving the wrists, palms, ankles, and soles, and to a less extent, the trunk (dz?)

A

Rocky mountain spotted fever (remember hyponatremia and thrombocytopenia)

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15
Q

Pruritic, reddish-brown macules and papules, which evolve into vesicular and necrotic lesions as new lesions appear, symmetrical, associated with fever and generalized malaise (dz and tx?)

A

Pityriasis lichenoides et varioliformis acuta (PLEVA) => last longer compared to VZV => tx erythromycin or UVB light therapy

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16
Q

Dermatophytid reaction (id reaction). What is it and what is pathophys?

A

Autoeczematization during treatment for tinea infections => delayed type 4 hypersensitivity => symmetrical maculopapular/papulovesciular lesions on palms and side of fingers

17
Q

Term newborn with indurated, non-tender reddish nodules and plaques on posterior trunk, buttocks, cheeks, or bony prominence of extremity (diagnosis and tx)

A

Subcutaneous fat necrosis, monitor for hypercalcemia

18
Q

Young girl with 1 week of progressive vaginal itching, dysuria, and dyschezia. Symmetrical area of hypopigmentation around vulva and perianal skin associated with erythema, hemorrhagic erosions, small tears, and excoriations (dz and tx)

A

Lichen sclerosus, topical steroids