Necrotizing rashes: Difference between revisions
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==Background== | |||
{{Skin anatomy background images}} | |||
* | |||
{{Rash red flags}} | |||
{{Primary derm lesions names}} | |||
==Clinical Features== | |||
{{Necrotizing rashes images}} | |||
==Differential Diagnosis== | |||
{{Necrotizing Rashes DDX}} | {{Necrotizing Rashes DDX}} | ||
==Evaluation== | |||
==Management== | |||
*Based on presumed cause | |||
==Disposition== | |||
*Based on presumed cause | |||
==See Also== | ==See Also== | ||
*[[ | *[[General approach to rashes]] | ||
==References== | |||
<references/> | |||
[[Category:Dermatology]] | [[Category:Dermatology]] | ||
[[Category:Symptoms]] | [[Category:Symptoms]] | ||
Latest revision as of 17:26, 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
Clinical Features
Necrotizing rashes visual diagnosis
Differential Diagnosis
Necrotizing rashes
- Necrotizing soft tissue infections
- Purpura fulminans
- Drug rash
- Levamisole toxicity
- Heparin-induced skin necrosis
- Warfarin-induced skin necrosis
Evaluation
Management
- Based on presumed cause
Disposition
- Based on presumed cause
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.