Fever and rash

Petechial

• Infectious
  • Dengue fever
  • EBV
  • Endocarditis
  • Enteric bacteria
  • Enterovirus
  • Epidemic typhus (Rickettsia prowazekii)
  • Gonococcemia
  • Gram negative bacteria
  • Hepatitis B
  • Meningococcemia
  • Rat bite fever
  • RMSF
  • Rubella

• Noninfectious
  • Allergy
  • Amyloidosis
  • HSP
  • Hypersensitivity vasculitis
  • Lupus
  • Rhumatic fever
  • Scurvy
  • Thrombocytopenia

Pediatric

Skin changes are often the most concerning finding in a pediatric fever

• HSP
• HUS
• ITP
• Meningitis (Peds)
• Microangiopathic Hemolytic Anemia (MAHA)
• TTP

Maculopapular

• Infectious
  • Adenovirus
  • Arbovirus
  • EBV
  • Ehrlichiosis
  • Enterovirus
  • 5th Dz
  • HSV 6
  • Leptospirosis
  • Lyme
  • Meningococcemia
  • Mycoplasma
  • Parvovirus (B19)
  • Primary HIV
  • Psittacosis
  • Rickettsia
  • Rubella
  • Rubeola
  • Secondary syphilis
  • Streptobacillus moniliformis
  • Typhoid fever/typhus

• Noninfectious
  • Acroderm enteropathica
  • Allergy
  • Dermatomyositis
  • Erythema marginatum
  • Erythema multiforme
  • Lupus
  • Serum sickness
  • Sweet's syndrome

Vesico-Bullous

• Infectious
  • Enterovirus
  • 5th Dz
  • Folliculitis (Staph, Candida, Pseudomonas)
  • GC
  • HIV
  • HSV
  • Parvovirus B19
  • Rickettsia
  • Staph
  • Varicella
  • Vibrio vulnificus

• Noninfectious
  • Allergy
  • Eczema vaccinatum
  • Erythema multiforme bullosum
  • Plant dermatitis

Erythematous

• Infectious
  • Staph/strep (toxic shock, scarlet fever)
  • Ehrlichiosis
  • Strep viridans
  • C. haemolyticum
  • Kawasaki's
  • Enterovirus

• Noninfectious
  • Allergy
  • Eczema
  • Lymphoma
  • Pityriasis rubra
  • Psoriasis
  • Sezary syndrome
  • Vasodilation

Urticarial

• Infectious
  • Adenovirus
  • EBV
  • Enterovirus
  • Hep B
  • HIV
  • Loiasis
  • Lyme
  • Mycoplasma
  • Onchocerciasis
  • Schistosomiasis
  • Strongyloides
  • Trichinosis

• Noninfectious
  • Allergy
  • Idiopathic
  • Malignancy
  • Vasculitis

See Also

• Rashes