Pediatric rashes
This page is for pediatric patients; for other age groups see general approach to rashes and neonatal rashes
Background
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.webp) | |
| 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
Ulcer, fissue, and erosion
- Plaque/scaley papule
- Eschar
- Fissure/erosion/ulcer
- Purpura/petechia
- Plaque/smooth papule
Rash Red Flags[1]
- Fever
- Toxic appearance
- Hypotension
- Mucosal lesions
- Severe pain
- Very old or young age
- Immunosuppressed
- New medication
Differential Diagnosis
Pediatric Rash
- Atopic dermatitis
- Bed bugs
- Contact dermatitis
- Drug rash
- Erythema Infectiosum (Fifth disease)
- Hand-foot-and-mouth disease
- Henoch-Schonlein Purpura (HSP)
- Herpangina
- Herpes simplex virus
- Infectious Mononucleosis
- Meningitis
- Measles
- Molluscum contagiosum
- Roseola infantum
- Rubella German measles)
- Scabies
- Scarlet fever
- Smallpox
- Varicella (Chickenpox)
Evaluation
Pediatric rashes visual diagnosis
Erythema Infectiosum (Fifth disease)
Henoch-schonlein purpura
Seborrheic dermatitis
See Also
- Neonatal Rashes
- Rashes
References
- Nguyen T and Freedman J. Dermatologic Emergencies: Diagnosing and Managing Life-Threatening Rashes. Emergency Medicine Practice. September 2002 volume 4 no 9.
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