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FIGURE 88.25 Scaly hyperpigmented patches consistent with tinea versicolor PAPULOSQUAMOUS ERUPTIONS/SCALY RED PATCHES AND PLAQUES Papulosquamous eruptions are discussed in Chapter 70 Rash: Papulosquamous Eruptions and Viral Exanthems These are conditions that are a mixture of papules or plaques with scale They are often red but can be more pink or purple in color as in lichen planus Conditions That Lack Pruritus Pityriasis Rosea For more information about pityriasis rosea, see Chapter 70 Rash: Papulosquamous Eruptions and Viral Exanthems This is a harmless skin condition that generally occurs in preadolescents to adults and contains scaly pink or red plaques often in a “Christmas tree” distribution on the back ( Fig 88.18 ) There are atypical variants that are more papular and scaly and include the head and neck One should consider secondary syphilis in the differential of pityriasis rosea ( Fig 88.20 ) Guttate psoriasis should also be included in the differential Secondary Syphilis Please see previous discussion in this chapter Pruritic Papulosquamous Disorders