Dermatologic Physical Exam

Primary Lesions

1. Nonbullous impetigo: Thin-walled, small, transient vesicles that rupture easily (see Photo 1); burnished, moist, deep-red macules 0.5 to 1.0 cm that may enlarge as they coalesce (see Photo 2).

2. Bullous impetigo: Bullae 1 to 2 cm in size that are clear at first and later become cloudy (see Photos 3,4); scaling and red plaques 1 to 2 cm or more in size that show central resolution (see Photo 5).

Secondary Lesions

1. Crusting, typically honey-colored, that may also be brown or hemorrhagic (see Photos 4-6).

2. Loose white scale that occurs in both types at the attachment point of the degenerated blister roof (see Photos 5,6).

3. Postinflammatory hyperpigmentation.

4. Postinflammatory hypopigmentation.


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