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Lichen spinulosus

Field	Value
synonym	Keratosis spinulosa
specialty	Dermatology

Lichen spinulosus is a rare skin disorder characterized by follicular keratotic papules that are grouped into large patches. It is a variant of keratosis pilaris named for its resemblance to a patch of lichen.

Signs and symptoms

It appears as a cluster of keratotic spines that resemble sandpaper and 2–5 cm hypopigmented or skin-colored follicular papules. The lesions typically appear on different parts of the skin and last for a few weeks or months.

Causes

It could be inherited or linked to substances like gold, arsphenamine, thallium, vitamin A deficiency, diphtheria toxin, atopy, lithium medication, Hodgkin's disease, Crohn's disease, HIV, or alcoholism.

Diagnosis

The histologic observations reveal a dermal lymphohistiocytic infiltration focused around hair follicles.

Treatment

Treatments include topical keratolytics and emollients such as urea, adapalene, salicylic acid, vitamin A, tretinoin, and tacalcitol.

References

James, William; Berger, Timothy; Elston, Dirk (2005). ''Andrews' Diseases of the Skin: Clinical Dermatology''. (10th ed.). Saunders. {{ISBN. 0-7216-2921-0.
Rapini, Ronald P.. (2007). "Dermatology: 2-Volume Set". Mosby.
(2020-06-12). "An Uncommon Case of Lichen Spinulosus in an Adult Patient Clinically Mmimicking Folliculotropic Mycosis Fungoides". Springer Science and Business Media LLC.

Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

conditions-of-the-skin-appendages

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