Fever and rash: Difference between revisions
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Revision as of 16:27, 11 December 2024
Background
Rash Red Flags[1]
- Fever
- Toxic appearance
- Hypotension
- Mucosal lesions
- Severe pain
- Very old or young age
- Immunosuppressed
- New medication
Dermatology Nomenclature
Small lesions (<0.5cm)
| Name | Raised/Palpable | Fluid-Filled | Other Description | Diagram |
| Macule | No | None | flat, cirumscribed, colored | 
|
| Papule | Yes | None | Solid | 
|
| Vesicle | Yes | Clear | .png)
| |
| Pustule | Yes | Pus | Leukocytes or keratin | 
|
Large lesions (>0.5cm)
| Name | Raised/Palpable | Fluid-Filled | Other Description | Diagram |
| Patch | No | None | Large macule (flat, colored) | 
|
| Plaque | Yes | None | Superficially raised, circumscribed solid area | 
|
| Nodule | Yes | None | Distinct large papule | 
|
| Bulla | Yes | Clear | Large vesicle/blister or exposed epidermal layer | 
|
| Wheal | Yes | Edema | Firm and edema of dermis |
Other
- Eschar
- Fissure/erosion/ulcer
- Necrotizing rashes
Petechial
- Infectious
- Noninfectious
- Allergy
- Amyloidosis
- HSP
- Hypersensitivity vasculitis
- Lupus
- Rheumatic fever
- Scurvy
- Thrombocytopenia
Pediatric
Skin changes are often the most concerning finding in a pediatric fever
Maculopapular
- Infectious
- Noninfectious
Vesico-Bullous
- Infectious
- Noninfectious
- Allergy
- Eczema vaccinatum
- Erythema multiforme bullosum
- Plant dermatitis
Erythematous
- Infectious
Urticarial
- Infectious
- Noninfectious
- Allergy
- Idiopathic
- Malignancy
- Vasculitis
See Also
References
- ↑ Nguyen T and Freedman J. Dermatologic Emergencies: Diagnosing and Managing Life-Threatening Rashes. Emergency Medicine Practice. September 2002 volume 4 no 9.