Milia en plaque

Milia En Plaque as a Distinct Follicular Hamartoma With Cystic Trichoepitheliomatous Features

Milia en plaque (MEP) is an uncommon disorder characterized by an erythematous plaque containing numerous milia. The pathogenesis of MEP is not clear. The authors report a man with an erythematous plaque on the right retroauricular area, containing numerous white-yellow cysts varying in size. Histological examination showed that multiple cystic structures at various levels of the dermis that were lined by stratified squamous epithelium and contained keratinous material-these findings were consistent with the diagnosis of multiple milia. In addition to epidermal cysts, however, the lesion consisted of a branched proliferation of pale-staining keratinocytes lined with basal keratinocytes budding from the overlying epidermis. Moreover, some cysts were formed within the branched epithelial proliferation, had thicker cyst walls than the ordinary milium, or had irregular or branched projections toward the surrounding dermis. From these findings, the authors conclude that MEP is a distinct follicular hamartoma with cystic trichoepitheliomatous features.

Milia en Plaque Successfully Treated by Dermabrasion

BACKGROUND

Milia en plaque is a rarely described benign lesion characterized by milia within an erythematous base, usually located periauricularly. No optimal treatment is known.

OBJECTIVE

To illustrate by a case report the clinical presentation and effect of dermabrasion on milia en plaque.

METHODS

A 60-year-old woman with milia en plaque at the mandibular ridge was treated with dermabrasion using a diamond fraise.

RESULTS

Complete regression of the lesion was seen at a follow-up of 6 months.

CONCLUSION

Dermabrasion seems a suitable treatment for milia en plaque.

Milia en plaque: a case report and review of the literature

BACKGROUND

Milia en plaque (MEP) is an unusual entity with a distinctive clinicohistologic appearance. Optimal treatment is unestablished, particularly for MEP located on difficult anatomic areas.

OBJECTIVE

To illustrate by a case report the clinical presentation and management of MEP.

METHODS

A 35-year-old woman with numerous tiny cysts within an slightly erythematous base in unilateral periorbital distribution is described. Histology revealed epidermal cysts arranged within the entire dermis.

RESULTS

Treatment with chemical exfoliating agents, manual extraction, and topical photodynamic therapy resulted in partial improvement.

CONCLUSION

Dermatologists should become familiar with this peculiar condition, being significantly rare possibly because of underreporting or misdiagnosis. New treatment procedures must be tried to achieve a successful cosmetic result with minimal risks.