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

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Summary

Introduction

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).

Results
Conclusion

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