Skin and Soft Tissue Infections

Parent: MOC - Diseases by System · Workflow: MOC - Clinical Microbiology

Disease Notes

Cellulitis and Skin Abscess ✅
Necrotizing Soft Tissue Infection ✅
Diabetic foot osteomyelitis overlap → Acute Osteomyelitis

Syndromes

Syndrome	Disease note	First specimens / methods
Cellulitis / abscess	Cellulitis and Skin Abscess	Clinical ± I&D culture
Necrotizing fasciitis / myonecrosis	Necrotizing Soft Tissue Infection	OR emergency + culture/Gram Stain
Diabetic foot	TBD / Acute Osteomyelitis	Deep tissue after debridement

Pathogens (starter)

Staphylococcus aureus · Streptococcus pyogenes
Gram-negatives / Pseudomonas in water-exposed or chronic wounds
Polymicrobial anaerobes in nec fasc type I

Key Concepts

Toxin syndromes (TSS, scalded skin) — organism pages
Source control > antibiotic alone for abscess

MOC - Immunology (post-strep sequelae from Streptococcus pyogenes)
MOC - Antimicrobials