What types of hyperpigmentation are due to dermal melanin deposition?
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| | Fig. 18.7 Two target-shaped patches of postinflammatory hyperpigmentation on the dorsal wrist of a woman following resolution of erythema multiforme. | Macular amyloidosis: Brownish-gray macules on the torso or extremities - Fixed drug eruption: Reddish-brown to blue-gray macule, with erythema, edema, scale, and sometimes blisters (see Chapter 14)
- Erythema ab igne: Blue-gray patches, sometimes with erythema and scale
- Erythema dyschromicum perstans: Erythematous, ash-gray macules and patches
- Postinflammatory hyperpigmentation: Brown to gray macules and patches (Fig. 18-7)
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