Korean J Dermatol.  2004 May;42(5):631-633.

A Case of Discrete Lichen Myxedematosus

Affiliations
  • 1Department of Dermatology, Yonsei University College of Medicine, Seoul, Korea. ydshderm@yumc.yonsei.ac.kr

Abstract

Lichen myxedematosus (synonym, papular mucinosis) is a disorder characterized by lichenoid papules, nodules and plaques due to dermal mucin deposition, and a variable degree of fibrosis without thyroid dysfunction. Discrete lichen myxedematosus is a subtype of the localized lichen myxedematosus. Clinically, firm, smooth, waxy or flesh-colored papules measuring 2 to 5 mm in diameter, numbering just a few to hundreds, and involving limbs and trunk. The lesions progress slowly without systemic symptoms and rarely resolve spontaneously. Histologically, the upper and mid dermis shows edema and diffuse or focal mucinous deposit under normal epidermis. Fibroblast proliferation is variable, but there is neither collagen deposition nor sclerosis. On experiencing a case of discrete grouped papules on the arm and thigh of a sixty three year-old women, we present it as discrete lichen myxedematosus.

Keyword

Discrete lichen myxedematosus; Papular mucinosis

MeSH Terms

Arm
Collagen
Dermis
Edema
Epidermis
Extremities
Female
Fibroblasts
Fibrosis
Humans
Lichens*
Mucins
Scleromyxedema*
Sclerosis
Thigh
Thyroid Gland
Collagen
Mucins
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