A 10-year-old girl had two localized psoriasiform plaques at birth. Subsequently, she developed generalized, asymptomatic, scaly plaques arranged in linear bands and streaks along the lines of Blaschko. The morphologic and histopathologic features, the clinical course, and HLA (CW6,A2) association were characteristic of psoriasis. Although rare, true linear psoriasis exists.

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A child had cerebral palsy and linear and whorled nevoid hypermelanosis on the right side of his body. He had spasticity and wasting in both lower limbs, with electroencephalographic changes and brain abnormalities on computerized tomographic scan. Chromosomal study of peripheral blood leukocytes found a normal male karyotype. The pathogenesis of this condition is still unclear.

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