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Definition / general | Clinical images | Microscopic (histologic) description | Differential diagnosis | Additional referencesCite this page: Hamodat M Lichen nitidus. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/skinnontumorlichennitidus.html. Accessed December 6th, 2019.
Definition / general
- Children with asymptomatic, pinpoint, round, flesh-colored papules on trunk, genitalia, abdomen and forearms
- May co-exist with lichen planus
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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