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

Topic Completed: 1 August 2011

Revised: 26 March 2019

Copyright: 2002-2019,, Inc.

PubMed Search: Lichen nitidus

Mowafak Hamodat, M.B.Ch.B., M.Sc.
Page views in 2019: 3,253
Page views in 2020 to date: 181
Cite this page: Hamodat M Lichen nitidus. website. Accessed January 23rd, 2020.
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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