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Follicular red dots: a novel dermoscopic pattern observed in scalp discoid lupus erythematosus.
Arch Dermatol. 2009 Dec; 145(12):1406-9.AD

Abstract

BACKGROUND

Scalp dermoscopy plays an important role in the diagnosis of hair and scalp disorders, and specific dermoscopic patterns have recently been associated with several disorders causing noncicatricial alopecia, such as androgenetic alopecia, alopecia areata, trichotillomania, and tinea capitis.

OBSERVATIONS

We describe the morphologic and pathologic features of a new dermoscopic pattern, referred to as "follicular red dots," that was found in scalp lesions of 5 patients with active discoid lupus erythematosus (DLE). Follicular red dots appear as erythematous polycyclic, concentric structures, with a diameter ranging from 0.16 to 0.47 mm, regularly distributed in and around the follicular ostia. In the pathologic findings, red dots correspond to widened infundibula plugged by keratin and surrounded by dilated vessels and extravasated erythrocytes. Retrospective blinded evaluation of the dermoscopic images of 155 patients with cicatricial alopecia suggests that follicular red dots are a specific feature of DLE because the pattern was not identified in the images of cicatricial alopecia resulting from other diseases.

CONCLUSIONS

The follicular red dot pattern is a specific feature of scalp lesions of active lupus erythematosus of the scalp. Recognition of this distinctive dermoscopic pattern may help the clinician to differentiate DLE from other diseases causing cicatricial alopecia.

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Authors+Show Affiliations

Tosti A
Department of Dermatology, University of Bologna, Via Massarenti 1, 40138, Bologna, Italy. antonella.tosti@unibo.it
Torres F
No affiliation info available
Misciali C
No affiliation info available
Vincenzi C
No affiliation info available
Starace M
No affiliation info available
Miteva M
No affiliation info available
Romanelli P
No affiliation info available

MeSH

AdultAgedAlopeciaCohort StudiesDermoscopyFemaleFolliculitisHumansLupus Erythematosus, DiscoidMaleMiddle AgedRetrospective StudiesScalp Dermatoses

Pub Type(s)

Journal Article

Language

eng

PubMed ID

20026850

Citation

Tosti, Antonella, et al. "Follicular Red Dots: a Novel Dermoscopic Pattern Observed in Scalp Discoid Lupus Erythematosus." Archives of Dermatology, vol. 145, no. 12, 2009, pp. 1406-9.
Tosti A, Torres F, Misciali C, et al. Follicular red dots: a novel dermoscopic pattern observed in scalp discoid lupus erythematosus. Arch Dermatol. 2009;145(12):1406-9.
Tosti, A., Torres, F., Misciali, C., Vincenzi, C., Starace, M., Miteva, M., & Romanelli, P. (2009). Follicular red dots: a novel dermoscopic pattern observed in scalp discoid lupus erythematosus. Archives of Dermatology, 145(12), 1406-9. https://doi.org/10.1001/archdermatol.2009.277
Tosti A, et al. Follicular Red Dots: a Novel Dermoscopic Pattern Observed in Scalp Discoid Lupus Erythematosus. Arch Dermatol. 2009;145(12):1406-9. PubMed PMID: 20026850.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Follicular red dots: a novel dermoscopic pattern observed in scalp discoid lupus erythematosus. AU - Tosti,Antonella, AU - Torres,Fernanda, AU - Misciali,Cosimo, AU - Vincenzi,Colombina, AU - Starace,Michela, AU - Miteva,Mariya, AU - Romanelli,Paolo, PY - 2009/12/23/entrez PY - 2009/12/23/pubmed PY - 2010/1/16/medline SP - 1406 EP - 9 JF - Archives of dermatology JO - Arch Dermatol VL - 145 IS - 12 N2 - BACKGROUND: Scalp dermoscopy plays an important role in the diagnosis of hair and scalp disorders, and specific dermoscopic patterns have recently been associated with several disorders causing noncicatricial alopecia, such as androgenetic alopecia, alopecia areata, trichotillomania, and tinea capitis. OBSERVATIONS: We describe the morphologic and pathologic features of a new dermoscopic pattern, referred to as "follicular red dots," that was found in scalp lesions of 5 patients with active discoid lupus erythematosus (DLE). Follicular red dots appear as erythematous polycyclic, concentric structures, with a diameter ranging from 0.16 to 0.47 mm, regularly distributed in and around the follicular ostia. In the pathologic findings, red dots correspond to widened infundibula plugged by keratin and surrounded by dilated vessels and extravasated erythrocytes. Retrospective blinded evaluation of the dermoscopic images of 155 patients with cicatricial alopecia suggests that follicular red dots are a specific feature of DLE because the pattern was not identified in the images of cicatricial alopecia resulting from other diseases. CONCLUSIONS: The follicular red dot pattern is a specific feature of scalp lesions of active lupus erythematosus of the scalp. Recognition of this distinctive dermoscopic pattern may help the clinician to differentiate DLE from other diseases causing cicatricial alopecia. SN - 1538-3652 UR - https://www.unboundmedicine.com/medline/citation/20026850/Follicular_red_dots:_a_novel_dermoscopic_pattern_observed_in_scalp_discoid_lupus_erythematosus_ L2 - https://jamanetwork.com/journals/jamadermatology/fullarticle/10.1001/archdermatol.2009.277 DB - PRIME DP - Unbound Medicine ER -