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



Topic Completed: 1 August 2011

Revised: 26 March 2019

Copyright: 2002-2019, PathologyOutlines.com, Inc.

PubMed Search: Lichen nitidus


Mowafak Hamodat, M.B.Ch.B., M.Sc.
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Cite this page: Hamodat M Lichen nitidus. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/skinnontumorlichennitidus.html. Accessed June 17th, 2019.
Definition / general
  • Children with asymptomatic, pinpoint, round, flesh-colored papules on trunk, genitalia, abdomen and forearms
  • May co-exist with lichen planus
Clinical images

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Tiny papules

Microscopic (histologic) description
  • Epidermis has parakeratosis and atrophy; clawlike pattern of curvilinear, fingerlike extensions and surrounding papillary dermal lymphocytic and histiocytic infiltrate
  • Occasionally multinicleate giant cells and parakeratosis; variable dyskeratotic keratinocytes at dermoepidermal junction; minimal lichenoid change
Differential diagnosis
  • Lichen planus: has orthohyperkeratosis and acanthosis with sawtooth pattern; positive direct immunofluorescence
Additional references
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