Skin-nontumor / Clinical Dermatology

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Skin-nontumor / Clinical Dermatology

Other dermatoses

Lichen striatus

Reviewer: Mowafak Hamodat, MB.CH.B, MSc., FRCPC, Eastern Health, St. Johns, Canada (see Reviewers page)
Revised: 1 August 2011, last major update August 2011
Copyright: (c) 2002-2011, PathologyOutlines.com, Inc.

Definition
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● Small papules that expand over time to form bands or streaks, then disappear
● Usually affects extremities of children in spring and summer
● Case clustering has been documented

Treatment
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● Self limiting, disappears within months or a year of onset

Clinical description
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● Solitary unilateral, erythematous flesh-colored lichenoid or sometimes psoriasiform scaly papule, which coalesce into a continuous or interrupted or curved bands

Clinical images
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Lichen striatus

Micro description
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● Spongiosis and vacuolar interface change; also acanthosis and parakeratosis
● Dermal lymphohistiocytic infiltrate around superficial and deep vessels and around adnexa

Micro images
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Various images

End of Skin-nontumor / Clinical Dermatology > Other dermatoses > Lichen striatus

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