Chief Complaint: Rash
| Pivotal Assessment | Finding |
|---|---|
Lesion Type |
| Lesion Type | Description | Example Conditions |
|---|---|---|
| Macule | Flat, non-palpable, <1 cm | Measles, tinea versicolor |
| Papule | Raised, solid, <1 cm | Lichen planus, warts |
| Plaque | Raised, >1 cm, flat-topped | Psoriasis |
| Vesicle | Small fluid-filled bump, <1 cm | Chickenpox, herpes |
| Pustule | Pus-filled bump | Acne, impetigo |
| Nodule | Larger, deeper lump | Erythema nodosum, cyst |
| Wheal | Transient, raised, edematous | Hives (urticaria) |
| Petechiae/purpura | Red/purple, non-blanching spots | Vasculitis, meningococcemia |