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Skin Infections and Infestations Flashcards

(51 cards)

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1
Q

______ Atopic dermatitis: characteristic involvement of flexural skin: antecubital fossa, popliteal fossa, neck, wrists, ankles

A

Childhood

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2
Q

______ Atopic dermatitis: dry, red scaly areas confined to cheeks

A

Infantile

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3
Q

______ Atopic dermatitis: eyelids and Hands showing xerosis, ichthyosis vulgaris

A

Adult

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4
Q

Antibiotics known to commonly trigger allergic contact dermatitis

A

Bacitracin, neomycin

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5
Q

Atopic dermatitis presents on the ______ surfaces and results, in part, from ______ mutations.

A

Flexor, filaggrin

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6
Q

Candida are _____-eating fungi that most commonly cause ______.

A

glucose and serum; thrush (oral candidiasis)

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7
Q

Cause of seborrheic dermatitis

A

Malassezia furfur

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8
Q

Cause of stasis dermatitis

A

Lower extremity edema

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9
Q

Cause of Syphilis

A

Treponema pallidum

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10
Q

Causes of Cellulitis

A

Beta-hemolytic strep, haemophilus influenza, Staph aureus

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11
Q

Causes of Impetigo

A

Beta-hemolytic strep, Staph aureus

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12
Q

Dermatophytes are _____-eating fungi that cause ______ infections

A

keratin; tinea

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13
Q

Drug-induced exanthems usually begin___ days after starting a medication

A

7 to 14

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14
Q

KOH prep: diagnosis of _______

A

fungal infections

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15
Q

Location of seborrheic dermatitis.

A

Scalp

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16
Q

Location of stasis dermatitis.

A

Lower legs

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17
Q

Mineral oil: diagnosis of ______

A

scabies

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18
Q

Psoriasis can be associated with ______ (3)

A

Psoriatic arthritis, heart disease risk, metabolic syndrome

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19
Q

Psoriasis presents on the ______ surfaces and may serve as an independent risk factor for _______.

A

Extensor, heart disease

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20
Q

Tzanck smear: diagnosis of ______

A

Herpesviruses

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21
Q

Viral exanthems are most common in _____ (100%) with high risk also in _____.

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A

Mononucleosis; HIV

22
Q

What pathology? adult louse is easily found attached to bases of hairs

23
Q

What pathology? asymptomatic tan scaly macules that may develop into patches with truncal distribution, caused by _______

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A

Tinea versicolor; malassezia furfur

24
Q

What pathology? barrier disrupted skin due to filaggrin mutations, elevated IgE and eosinophilia

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A

Atopic Dermatitis

25
What pathology? common skin disease at any age, majority before age 5, associated with xerosis and history of atopy (asthma, allergic rhinitis)
Atopic Dermatitis
26
What pathology? erythematous papules and thin plaques with scale, involving the dermis and epidermis, often bilaterally
Stasis dermatitis
27
What pathology? erythematous papules with wavy threat-like burrows with symmetric distribution, especially in interdigital webspace of hands, flexural wrist, waist, genitalia, buttocks
Scabies
28
What pathology? grouped vesicles on an erythematous base in a dermatomal distribution
Zoster (Shingles)
29
What pathology? grouped vesicles on an erythematous base resulting from an enveloped dsDNA virus
HSV
30
What pathology? histology shows hyperproliferation of epidermis with elongation of rete ridges
Psoriasis
31
What pathology? honey-colored lesion with yellow crust most commonly affecting the face
Non-bullous impetigo
32
What pathology? hyperkeratotic papillomas with punctuate black dots
HPV
33
What pathology? Hyperlinearity of palms
Atopic Dermatitis
34
What pathology? ill-defined, non-palpable area of painful erythema, most commonly with lymphangitic streaking
Cellulitis
35
What pathology? Infestation accentuated at night or by hot baths/showers
Scabies
36
What pathology? initially erythematous maculopapular rash; thin walled vesicles on erythematous base with different stages of development present
Varicella
37
What pathology? intense pruritis and erythematous papules, especially on trunk, caused by infestation
Body lice
38
What pathology? Intense pruritis limited to genital hair, caused by infestation
Genital lice
39
What pathology? intense pruritis with erythema and scaling limited to scalp, nape of neck and behind ears
Head lice
40
What pathology? Manifests as a delayed type hypersensitivity reaction mediated by T -cell reactions
Allergic Contact Dermatitis
41
What pathology? manifests as a immediate type hypersensitivity reaction mediated by IgE antibodies
Urticaria
42
What pathology? may have bullae, pustules, or hemorrhagic necrosis as well as systemic symptoms
Erysipelas
43
What pathology? nits are tan-brown oval eggs attached to hair shafts
Head and Body lice
44
What pathology? non-enveloped dsDNA virus typically manifesting as verruca vulgaris
HPV
45
What pathology? Non-pruritic papulosquamous lesions that may have scaling and moth-eaten alopecia
Syphilis
46
What pathology? Primary lesion of a papule that produces an oval indurated ulcer, followed by split papules at oral commissures and annular face lesions
Syphilis
47
What pathology? Scaly erythematous plaques frequently on hands, elbows, forearms, knees, and feet
Psoriasis
48
What pathology? sharply demarcated area of erythema with non-pitting edema most commonly confined to the face
Erysipelas
49
What pathology? Superficial flaccid blister that may have pus that progresses to collapsed blisters with varnish-like appearance
Bullous impetigo
50
What pathology? Type IV delayed-type hypersensitivity reactions usually start 24-48 hours after exposure but can be delayed longer, most are weak allergens that require repeat exposure for sensitization
Allergic Contact Dermatitis
51
What pathology? warm, tender, erythematous patches or plaques, involving the dermis and subcutaneous tissue, typically unilaterally
Cellulitis

Disease and Defense (16 decks)

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