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Skin and Soft Tissue Infections

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Page 1: Skin and Soft Tissue Infections. Vesicles Clinical SyndromeInfectious Agent SmallpoxVariola Virus ChickenpoxVaricella-zoster virus Shingles (herpes zoster)Varicella-zoster

Skin and Soft Tissue Infections

Page 2: Skin and Soft Tissue Infections. Vesicles Clinical SyndromeInfectious Agent SmallpoxVariola Virus ChickenpoxVaricella-zoster virus Shingles (herpes zoster)Varicella-zoster

Vesicles

Clinical Syndrome Infectious Agent

Smallpox Variola Virus

Chickenpox Varicella-zoster virus

Shingles (herpes zoster) Varicella-zoster virus

Cold sores, herpetic whitlow, herpes gladiatorum

Herpes simplex virus

Hand-foot-and-mouth disease

Coxsackie virus

Orf Parapoxvirus

Molluscum Contagiosum Pox-like virus

Rickettsialpox Rickettsia akari

Blistering distal dactylitis Staphylococcus aureus or Streptococcus pyogenes

Page 3: Skin and Soft Tissue Infections. Vesicles Clinical SyndromeInfectious Agent SmallpoxVariola Virus ChickenpoxVaricella-zoster virus Shingles (herpes zoster)Varicella-zoster

BullaeClinical Syndrome Infectious Agent

Staphylococcal scalded-skin syndrome

S. aureus 

 Necrotizing fasciitis

S. pyogenes, Clostridium spp., mixed aerobes and anaerobes 

 Gas gangrene Clostridium spp. 

 Halophilic vibrio Vibrio vulnificus 

Page 4: Skin and Soft Tissue Infections. Vesicles Clinical SyndromeInfectious Agent SmallpoxVariola Virus ChickenpoxVaricella-zoster virus Shingles (herpes zoster)Varicella-zoster

Crusted lesionsClinical Syndrome Infectious Agent

 Bullous impetigo/ecthyma

S. aureus 

 Impetigo contagiosa S. pyogenes 

 Ringworm Superficial dermatophyte fungi

 Sporotrichosis Sporothrix schenckii 

 Histoplasmosis Histoplasma capsulatum 

 Coccidioidomycosis Coccidioides immitis 

 Blastomycosis Blastomyces dermatitidis 

 Cutaneous leishmaniasis

Leishmania spp. 

 Cutaneous tuberculosis

Mycobacterium tuberculosis 

 Nocardiosis Nocardia asteroides 

Page 5: Skin and Soft Tissue Infections. Vesicles Clinical SyndromeInfectious Agent SmallpoxVariola Virus ChickenpoxVaricella-zoster virus Shingles (herpes zoster)Varicella-zoster

Folliculitis

Clinical Syndrome

Infectious Agent

 Furunculosis S. aureus 

 Hot-tub folliculitis

Pseudomonas aeruginosa 

 Swimmer's itch Schistosoma spp. 

 Acne vulgaris Propionibacterium acnes 

Page 6: Skin and Soft Tissue Infections. Vesicles Clinical SyndromeInfectious Agent SmallpoxVariola Virus ChickenpoxVaricella-zoster virus Shingles (herpes zoster)Varicella-zoster

Papular and Nodular lesionsClinical Syndrome Infectious Agent

Fish-tank or swimming-pool granuloma

Mycobacterium marinum 

Creeping eruption (cutaneous larva migrans)

Ancylostoma braziliense 

 Dracunculiasis Dracunculus medinensis 

 Cercarial dermatitis Schistosoma mansoni 

 Verruca vulgaris Human papillomaviruses 1, 2, 4

 Condylomata acuminata (anogenital warts)

Human papillomaviruses 6, 11, 16, 18

 Onchocerciasis nodule Onchocerca volvulus 

 Cutaneous myiasis Dermatobia hominis 

 Verruca peruana Bartonella bacilliformis 

 Cat-scratch disease Bartonella henselae 

 Lepromatous leprosy Mycobacterium leprae 

 Secondary syphilis (papulosquamous, nodular, and condylomata lata lesions)

Treponema pallidum 

 Tertiary syphilis (nodular gummatous lesions)

T. pallidum 

Page 7: Skin and Soft Tissue Infections. Vesicles Clinical SyndromeInfectious Agent SmallpoxVariola Virus ChickenpoxVaricella-zoster virus Shingles (herpes zoster)Varicella-zoster

Ulcer with or without eschars

Clinical Syndrome

Infectious Agent

Anthrax Bacillus anthracis 

Ulceroglandular tularemia

Francisella tularensis 

 Bubonic plague Yersinia pestis 

 Buruli ulcer Mycobacterium ulcerans 

 Leprosy M. leprae 

 Cutaneous tuberculosis

M. tuberculosis 

 Chancroid Haemophilus ducreyi 

 Primary syphilis T. pallidum 

Page 10: Skin and Soft Tissue Infections. Vesicles Clinical SyndromeInfectious Agent SmallpoxVariola Virus ChickenpoxVaricella-zoster virus Shingles (herpes zoster)Varicella-zoster

Necrotizing fascitiis

Clinical Syndrome Infectious Agent

Streptococcal gangrene S. pyogenes 

 Fournier's gangrene Mixed aerobic and anaerobic bacteria

 Staphylococcal necrotizing fasciitis

Methicillin-resistant S. aureus 

Page 11: Skin and Soft Tissue Infections. Vesicles Clinical SyndromeInfectious Agent SmallpoxVariola Virus ChickenpoxVaricella-zoster virus Shingles (herpes zoster)Varicella-zoster

Myositis and MyonecrosisClinical Syndrome Infectious Agent

Pyomyositis S. aureus 

 Streptococcal necrotizing myositis S. pyogenes 

 Gas gangrene Clostridium spp. 

 Nonclostridial (crepitant) myositis Mixed aerobic and anaerobic bacteria

 Synergistic nonclostridial anaerobic myonecrosis Mixed aerobic and anaerobic bacteria