41 - 4.1. Skin and Soft Tissue Infections Table I Most...

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4.1. Skin and Soft Tissue Infections Table I Most Common Organisms Layer involved Route of entry Appearance/localizat ion Risk factors/Comme nts Impetigo Staphylococcus aureusStreptococc us pyogenes stratum corneum cutaneous vesicles, pustules, “honey crusts” contagious, poor hygiene Folliculitis Staphylococcus aureus stratum corneum dermis cutaneous papules and pustules around hair follicles Many other bacteria, fungi Pseudomonas aeruginosa as above as above papules and pustules “hot tub” folliculitis Erysipelas Streptococcus pyogenes Group C, G streptococci superficia l dermis cutaneous with lymphatic spread bright red, well circumscribed lesions occ. bullous; typically face and legs infants, elderly, saphenous vein harvest Ecthyma Staphylococcus aureus Streptococcus pyogenes dermis cutaneous ulcerations with adherent scabs poor hygiene (gangrenosum) Pseudomonas aeruginosa dermis hematogeno us deep ulcerations with black eschars bacteremia, neutropenia (“ecthyma-like”)Bacillus anthracis dermis cutaneous as above wool and mail
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This note was uploaded on 03/02/2012 for the course BSC BSC1086 taught by Professor Joystewart during the Fall '10 term at Broward College.

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41 - 4.1. Skin and Soft Tissue Infections Table I Most...

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