Cutaneous Infectious Diseases Pics Flashcards Preview

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Flashcards in Cutaneous Infectious Diseases Pics Deck (78)
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1

Pityriasis Versicolor

Patches or macules, hyper/hypopigmented, do not tan after sun exposure, dust-like scales, pruritis mild or absent.

Usually on trunk

Malassezia furfur

2

Impetigo

Bullous

contains clear yellow fluid, yellow crust

positive SSSS

(Staphylococcal Scalded Skin Syndrome)

S. aureus

2

Tinea Pedis - bullous and ulcerative

dermatophytosis of the feet

interdigital scaling, erosion with pruritis and malodor (athlete's foot)

superficial white scale in moccasin-type distribution, or can be vesiculo-bullous type

T. rubrum

3

Folliculitis (axilla)

dome-shaped pustule at opening of hair follicle.

can be bacterial, fungal, viral

(Staphylococcal, Pseudomonas)

3

Folliculitis - dermatophytic (buttocks)

Trichophyton rubrum

4

Tinea barbae - fungus

dermatophytosis of beard area (men only)

follicular papules and pustules that can develop into kerion

4

Candidiasis (cutaneous): intertrigo

"opportunistic yeast infection"

warm, moist areas, sharply demarcated, erythematous patches, SATELLITE LESIONS

Candida albicans

5

Erysipelas (buttocks)

plaque-like edematous erythema, sharply defined margins

fever, chills, malaise

Beta-hemolytic streptococcus

5

Tinea corporis - fungus (ring worm)

dermatophytosis of skin

erythematous, scaly plaque that spreads centrifugally as it clears

T. rubrum

5

Herpes Zoster (shingles)

Pain, paresthesias in involved DERMATOME, precede unilateral rash (most commonly thoracic region)

closely grouped vesicles on erythematous base, evolve into pustules, which dry and crust

Mild/Severe pain, can persist for months or years (postherpetic neuralgia)

6

Tinea Barbae - fungus

dermatophytosis in beard area (men only)

follicular papules and pustules, can develop into kerion

6

Tinea cruris - fungus (groin)

scaling erythematous plaque, sharp margins

pruritis, pain

6

Warts - Verruca vulgaris

frequently on fingers/hands, face, knees and elbows

Well-defined papules, rough and spiny, may be single or grouped

HPV 2 & 4

6

Plantar and Palmar Warts: Verruca plantaris

hyperkeratotic papules (painful with pressure)

Black dots can be seen when shaved away (thrombosed dermal capillary loops)

HPV 1

6

Herpes Zoster (shingles)

Pain, paresthesias in involved DERMATOME, precede unilateral rash (most commonly thoracic region)

closely grouped vesicles on erythematous base, evolve into pustules, which dry and crust

Mild/Severe pain, can persist for months or years (postherpetic neuralgia)

7

Folliculitis - Carbuncles

multiple, closely set furuncles with connecting sinus tracts

8

Cellulitis

warm, painful plaque, can develop bulla, sloughing of skin

Systemic symptoms preceding: regional lymphadenopathy, malaise, fever

S. aureus, Beta-hemolytic streptococci

9

Cellulitis

Infection extending to Subcutaneous tissue

S. aureus, Beta-hemolytic streptococci

9

Folliculitis - Furuncles

Boils - deep, tender, and inflamed nodules.

Evolve to fluctuant pus-filled abscess.

9

Folliculitis (beard)

herpes simplex virus

10

Cellulitis

warm, painful plaque, can develop bulla, sloughing of skin

systemic symptoms preceding: regional lymphadenopathy, malaise and fever

S. aureus, Beta-hemolytic streptococci

10

Tinea Pedis - moccasin-type

dermatophytosis of the feet

interdigital scaling, erosion with pruritis and malodor (athlete's foot)

superficial white scale in moccasin-type distribution, or can be vesiculo-bullous type

T. rubrum

10

Candidiasis: diaper dermatitis

"opportunistic yeast infection"

erythematous patches, sharply demarcated with SATELLITE LESIONS

Candida albicans

12

Impetigo

Non-bullous

honey-colored crusted plaque

S. aureus

12

Nongenital Herpes Simplex (HSV-1) - herpes labialis

Orofacial (can be found in genitals) - almost everyone has it! - sensory nerve endings

grouped, uniform vesicles on erythematous base, preceded by burning or tingling.

lips

13

Tinea Pedis (and onychomycosis)

dermatophytosis of the feet

interdigital scaling, erosion with pruritis and malodor (athlete's foot)

superficial white scale in moccasin-type distribution, or can be vesiculo-bullous type

T. rubrum

15

Warts - Verruca vulgaris

frequently on fingers/hands, face, knees and elbows

Well-defined papules, rough and spiny, may be single or grouped

HPV 2 & 4

16

Onychomycosis

fungal infection of the nail

DERMATOPHYTES, yeast, etc

18

Pityriasis Versicolor

Patches or macules, hyper/hypopigmented, do not tan after sun exposure, dust-like scales, pruritis mild or absent.

Usually on trunk

Malassezia furfur

19

Candidiasis (cutaneous): intertrigo, interdigital

"opportunistic yeast infection"

warm, moist areas, sharply demarcated, erythematous patches, SATELLITE LESIONS

Candida albicans