Ann Dermatol.  2011 Feb;23(1):61-63. 10.5021/ad.2011.23.1.61.

A Case of Lichen Planus Pigmentosus-inversus in a Korean Patient

Affiliations
  • 1Department of Dermatology and Institute of Hair and Cosmetic Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea. leewonsoo@yonsei.ac.kr

Abstract

Lichen planus pigmentosus-inversus is a rare variant of lichen planus pigmentosus. The eruption of lichen planus pigmentosus-inversus occurs mainly in the flexural regions and presents with brownish macules and patches. Here we describe the case of a 31-year-old Korean woman who presented with hyperpigmented lesions over her antecubital and popliteal area and groin. Physical examination revealed multiple brownish macules and patches on the intertriginous area without pruritis, and histologic findings showed a regressive pattern of lichen planus. These clinical and histological findings were consistent with a diagnosis of lichen planus pigmentosus-inversus.

Keyword

Intertriginous location; Lichen planus pigmentosus-inversus

MeSH Terms

Adult
Female
Groin
Humans
Lichen Planus
Lichens
Physical Examination
Pruritus

Figure

  • Fig. 1 Multiple annular or linear hyperpigmented macules and patches with a smooth surface. Some of the lesions followed the lines of cleavage. (A) Lesions on the axillae and antecubital fossae. (B) Lesions on the groin. (C) Lesions on the popliteal fossae.

  • Fig. 2 Histologically, pigment incontinence is diffusely expressed and lymphocytic infiltrate in the upper dermis is mild (H&E, ×100).


Reference

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