Abstract
Porcelain plaques: what is your diagnosis
Highlights
A 12-years-old teenager with no significant pathological antecedants who has moderately itchy whitish lesions in the abdomen and back that have been evolving for one year
A squamous, atrophic epidermal lining surmounted by a thick hyperkeratosis orthokeratotic compact
The coloring of orcein shows that the superficial elastic network is absent and that this band repels the persistent elastic fibers of the middle and deep dermis which are compacted at depth
Summary
A 12-years-old teenager with no significant pathological antecedants who has moderately itchy whitish lesions in the abdomen and back that have been evolving for one year. The clinical examination showed whitish and atrophic guttae patches, confluent in shiny plaques in the abdomen and back (Fig 1). The basal membrane is sometimes horizontal, sometimes cut into an arch between irregular epidermal crests (Fig. 3).
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