Lichen spinulosus

Lichen spinulosus (also known as "Keratosis spinulosa"^[1]^:776) is a rare skin disorder characterized by follicular keratotic papules that are grouped into large patches.^[2] It is a variant of keratosis pilaris.

Notes

↑ 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.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. ISBN 1-4160-2999-0.

References

Friedman S (1990). "Lichen spinulosus. Clinicopathologic review of thirty-five cases". J Am Acad Dermatol. 22 (2 Pt 1): 261–4. doi:10.1016/0190-9622(90)70035-G. PMID 2179296.

External links

Diseases of the skin and appendages by morphology

Growths

Epidermal	wart callus seborrheic keratosis acrochordon molluscum contagiosum actinic keratosis squamous-cell carcinoma basal-cell carcinoma Merkel-cell carcinoma nevus sebaceous trichoepithelioma

Pigmented	Freckles lentigo melasma nevus melanoma

Dermal and subcutaneous	epidermal inclusion cyst hemangioma dermatofibroma (benign fibrous histiocytoma) keloid lipoma neurofibroma xanthoma Kaposi's sarcoma infantile digital fibromatosis granular cell tumor leiomyoma lymphangioma circumscriptum myxoid cyst

Rashes

With
epidermal
involvement

Eczematous	contact dermatitis atopic dermatitis seborrheic dermatitis stasis dermatitis lichen simplex chronicus Darier's disease glucagonoma syndrome langerhans cell histiocytosis lichen sclerosus pemphigus foliaceus Wiskott–Aldrich syndrome Zinc deficiency

Scaling	psoriasis tinea (corporis cruris pedis manuum faciei) pityriasis rosea secondary syphilis mycosis fungoides systemic lupus erythematosus pityriasis rubra pilaris parapsoriasis ichthyosis

Blistering	herpes simplex herpes zoster varicella bullous impetigo acute contact dermatitis pemphigus vulgaris bullous pemphigoid dermatitis herpetiformis porphyria cutanea tarda epidermolysis bullosa simplex

Papular	scabies insect bite reactions lichen planus miliaria keratosis pilaris lichen spinulosus transient acantholytic dermatosis lichen nitidus pityriasis lichenoides et varioliformis acuta

Pustular	acne vulgaris acne rosacea folliculitis impetigo candidiasis gonococcemia dermatophyte coccidioidomycosis subcorneal pustular dermatosis

Hypopigmented	tinea versicolor vitiligo pityriasis alba postinflammatory hyperpigmentation tuberous sclerosis idiopathic guttate hypomelanosis leprosy hypopigmented mycosis fungoides

Without
epidermal
involvement

Red

Blanchable
Erythema

Generalized	drug eruptions viral exanthems toxic erythema systemic lupus erythematosus

Localized	cellulitis abscess boil erythema nodosum carcinoid syndrome fixed drug eruption

Specialized	urticaria erythema (multiforme migrans gyratum repens annulare centrifugum ab igne)

Nonblanchable
Purpura

Macular	thrombocytopenic purpura actinic/solar purpura

Papular	disseminated intravascular coagulation vasculitis

Indurated

Miscellaneous
disorders

Ulcers

Hair	telogen effluvium androgenic alopecia trichotillomania alopecia areata systemic lupus erythematosus tinea capitis loose anagen syndrome lichen planopilaris folliculitis decalvans acne keloidalis nuchae

Nail	onychomycosis psoriasis paronychia ingrown nail

Mucous membrane	Aphthous stomatitis oral candidiasis lichen planus leukoplakia pemphigus vulgaris mucous membrane pemphigoid cicatricial pemphigoid herpesvirus coxsackievirus syphilis systemic histoplasmosis squamous-cell carcinoma

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Lichen spinulosus

See also

Notes

References

External links