eMedicine Specialties > Dermatology > Reactive & Inflammatory Dermatoses
Lichen Spinulosus: Differential Diagnoses & Workup
Updated: Oct 30, 2009
- Overview
- Differential Diagnoses & Workup
- Treatment & Medication
- Follow-up
- Multimedia
Differential Diagnoses
| Disseminate and Recurrent Infundibular
Folliculitis | Pityrosporum Folliculitis |
| Frictional lichenoid dermatitis of
children | Trichostasis spinulosa |
| Hypovitaminosis A phrynoderma | |
| Keratosis Pilaris | |
| Lichen nitidus |
Other Problems to Be Considered
Dermatophytosis
Frictional lichenoid eruption
Lichen scrofulosorum
Lichen nitidus5
Lymphoproliferative disorders (folliculotropic cutaneous T-cell lymphoma/follicular mucinosis6
HIV-associated pityriasis rubra pilaris (type VI) demonstrates lichen spinulosus
Workup
Laboratory Studies
Diagnosis should be made on clinical grounds alone. At present, no laboratory tests are specific or diagnostic for lichen spinulosus.
Histologic Findings
Histologic findings of lichen spinulosus are similar to those observed in keratosis pilaris. In lichen spinulosus, dilated hair follicles are filled with a keratotic plug. An inflammatory lymphocytic infiltrate occurs around the follicle and in the dermis. Hyperkeratosis, parakeratosis, and acanthosis may be present in the follicle.
More on Lichen Spinulosus |
| Overview: Lichen Spinulosus |
Differential Diagnoses & Workup: Lichen Spinulosus |
| Treatment & Medication: Lichen Spinulosus |
| Follow-up: Lichen Spinulosus |
| Multimedia: Lichen Spinulosus |
| References |
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References
Friedman SJ. Lichen spinulosus. Clinicopathologic review of thirty-five cases. J Am Acad Dermatol. Feb 1990;22(2 Pt 1):261-4. [Medline].
Cohen SJ, Dicken CH. Generalized lichen spinulosus in an HIV-positive man. J Am Acad Dermatol. Jul 1991;25(1 Pt 1):116-8. [Medline].
Kano Y, Orihara M, Yagita A, Shiohara T. Lichen spinulosus in a patient with Crohn's disease. Int J Dermatol. Sep 1995;34(9):670-1. [Medline].
Kabashima R, Sugita K, Kabashima K, Nakamura M, Tokura Y. Lichen spinulosus in an alcoholic patient. Acta Derm Venereol. 2009;89(3):311-2. [Medline].
Tilly JJ, Drolet BA, Esterly NB. Lichenoid eruptions in children. J Am Acad Dermatol. Oct 2004;51(4):606-24. [Medline].
Cömert A, Akin O, Demirkesen C. Follicular mucinosis mimicking lichen spinulosus in an 11-year-old boy. Eur J Dermatol. Nov-Dec 2007;17(6):544-5. [Medline].
Maiocco KJ, Miller OF. Lichen spinulosus: response to therapy. Cutis. Feb 1976;17(2):294-99. [Medline].
Forman SB, Hudgins EM, Blaylock WK. Lichen spinulosus: excellent response to tretinoin gel and hydroactive adhesive applications. Arch Dermatol. Jan 2007;143(1):122-3. [Medline].
Boyd AS. Lichen spinulosus: case report and overview. Cutis. Jun 1989;43(6):557-60. [Medline].
Tilly JJ, Drolet BA, Esterly NB. Lichenoid eruptions in children. J Am Acad Dermatol. Oct 2004;51(4):606-24. [Medline].
Further Reading
Keywords
lichen spinulosus, keratosis follicularis spinulosa, lichen pilaris seu spinulosus of Crocker, keratosis follicularis spinosa of Unna
Differential Diagnoses & Workup: Lichen Spinulosus