Skin and Soft Tissue Infections
Preview this topic section
Each condition includes a free overview and clinical definition. Plans unlock the full Step 1 details.
Skin and Soft Tissue Infections conditions
AbscessAbscess is a localized collection of pus caused by infection, often presenting as a painful, swollen, and erythematous mass with possible fever and elevated white blood cells.Bacillary angiomatosisBacillary angiomatosis is a vascular proliferative disease caused by Bartonella species, presenting with skin lesions often in immunocompromised patients.CellulitisCellulitis is a bacterial skin infection causing redness, swelling, warmth, and pain, often due to Streptococcus or Staphylococcus species.ErysipelasErysipelas is an acute superficial skin infection caused by group A Streptococcus, characterized by raised, well-demarcated erythematous plaques and fever.ImpetigoImpetigo is a contagious superficial skin infection caused by Staphylococcus aureus or Streptococcus pyogenes, characterized by honey-colored crusted lesions.Necrotizing fasciitisNecrotizing fasciitis is a rapidly progressing soft tissue infection causing fascial necrosis, often caused by group A Streptococcus, requiring urgent diagnosis.Psoas AbscessPsoas abscess is a collection of pus in the iliopsoas muscle caused by bacterial infection, often presenting with fever, back pain, and difficulty walking.Staphylococcal scalded skin syndromeStaphylococcal scalded skin syndrome is a toxin-mediated skin disorder caused by Staphylococcus aureus, characterized by widespread epidermal blistering and desquamation.