Skin inflammatory (nontumor)
Lichenoid and interface reaction patterns
Lichen striatus

Author: Mowafak Hamodat, M.D., M.Sc. (see Authors page)

Revised: 15 October 2018, last major update August 2011

Copyright: (c) 2002-2018, PathologyOutlines.com, Inc.

PubMed Search: Lichen striatus

Cite this page: Hamodat, M. Lichen striatus. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/skinnontumorlichenstriatus.html. Accessed October 20th, 2018.
Definition / general
  • 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
Clinical features
  • Solitary unilateral, erythematous flesh-colored lichenoid or sometimes psoriasiform scaly papule, which coalesce into a continuous or interrupted or curved bands
Treatment
  • Self limiting, disappears within months or a year of onset
Clinical images

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Lichen striatus

Microscopic (histologic) description
  • Spongiosis and vacuolar interface change; also acanthosis and parakeratosis
  • Dermal lymphohistiocytic infiltrate around superficial and deep vessels and around adnexa
Microscopic (histologic) images

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Various images