Dermoscopy of porokeratosis of mibelli

Jha, Abhijeet Kumar; Sonthalia, Sidharth; Lallas, Aimilios

doi:10.4103/idoj.idoj_284_16

Cited by 17 publications

(14 citation statements)

References 5 publications

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“…Previous publications, mainly case reports, have not reported frequencies of specific dermoscopic findings in porokeratosis. However, a keratin rim was observed in all previously reported cases of porokeratosis which is in concordance with our cohort in which it was present in over 90% of the cases 2,7,9–26 . The presence of grey‐brown dots or pigmentation along the keratin rim has been reported on several occasions and was detected in 38.5% of lesions in our data set 2,9,10,13,15,21–26 .…”

Section: Discussionsupporting

confidence: 92%

Dermoscopy of porokeratosis: results from a multicentre study of the International Dermoscopy Society

Zaar

Polesie

Navarrete‐Dechent

et al. 2021

Acad Dermatol Venereol

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Background The diagnosis of porokeratosis can be challenging, and knowledge about its dermoscopic features is limited. Objectives To describe the dermoscopic features of porokeratosis of Mibelli and disseminated superficial actinic porokeratosis (DSAP) and the frequency of these features in a larger case series. The interobserver concordance was also assessed. Methods In this retrospective cohort study, members of the International Dermoscopy Society contributed macroscopic and dermoscopic images of histopathologically verified cases of porokeratosis of Mibelli or DSAP. Three observers independently reviewed the collected images to identify the presence of predefined dermoscopic features. Following this, a consensus meeting was held to agree upon which dermoscopic features were present in each lesion. Results In total, 78 clinical and dermoscopic images of porokeratoses were collected. The most common dermoscopic feature was keratin rim, which was present in 74 lesions (92.3%). The most common vascular structures were dotted or glomerular vessels which were present in almost half of the cases (48.7%). Other relatively frequent dermoscopic findings were as follows: non‐peripheral scales (44.9%), grey‐brown dots or pigmentation along the keratin rim (38.5%), and light‐brown pigmentation within the keratin rim (33.3%). Shiny white structures and blood spots or erosions along the keratin rim were findings never before described in porokeratosis and were detected in 16.7% and 17.9% of the lesions, respectively. Dermoscopic findings in porokeratosis of Mibelli and DSAP were similar except for fewer blood spots or erosions along the keratin rim and more light‐brown pigmentation within the keratin rim in DSAP. The interobserver concordance ranged from 0.44 (moderate) to 0.84 (almost perfect). Conclusions The dermoscopic hallmark of porokeratosis is the keratin rim, a finding also allowing for almost perfect interobserver agreement. Pigmentation or erosions along the keratin rim, vascular structures, as well as scales, pigmentation or shiny white structures within the keratin rim are additional dermoscopic clues.

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Section: Discussionsupporting

confidence: 92%

Dermoscopy of porokeratosis: results from a multicentre study of the International Dermoscopy Society

Zaar

Polesie

Navarrete‐Dechent

et al. 2021

Acad Dermatol Venereol

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“…In porokeratosis of Mibelli, the outer hyperpigmented track is encountered peripheral to the white track. [ 47 ]…”

Section: Other Inflammatory Disordersmentioning

confidence: 99%

Dermatoscopy of Inflammatory Diseases in Skin of Color

Bhat

Jha

2021

Indian Dermatology Online Journal

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Dermatoscopy is a relevant in vivo diagnostic tool for inflammatory diseases of the skin that aids not only in diagnosis, but also in monitoring the response to treatment. The inflammatory diseases show dermoscopic patterns involving the vessels, scales, follicles, background hue, and special clues. This review aims to provide an overview on the use of dermoscopy in inflammatory dermatoses based on the available literature and the deviation from it in the skin of color (SOC) as there is paucity of literature in dermoscopy of inflammatory disorders in SOC. The dermatoscopic patterns in most of the inflammatory diseases in SOC are similar to that of white skin, with pigmentary changes being the prominent dermoscopic findings while vascular patterns and erythema being less evident.

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“…La histopatología de la PQ es característica y similar en todas las variantes clínicas 1,3 . La biopsia debe tomarse en la periferia de la lesión, donde se encuentra la laminilla cornoide (columna compacta de queratinocitos paraqueratósicos) 3,7,9 .…”

Section: A B C Dunclassified

Poroqueratosis de Mibelli en la edad pediátrica

et al. 2020

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Las poroqueratosis son un grupo heterogéneo de trastornos de la queratinización epidérmica, de presentación infrecuente. Se caracterizan clínicamente por pápulas hiperqueratósicas que confluyen formando placas anulares con un centro atrófico y bordes sobreelevados. Hay seis variantes clínicas. El examen histopatológico evidencia la característica laminilla cornoide. Se presenta el caso de una niña de 2 años con diagnóstico de poroqueratosis de Mibelli y respuesta parcial al tratamiento tópico con tretinoínaal 0,025%, que actualmente continúa en seguimiento clínico.

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Dermoscopy of porokeratosis of mibelli

Cited by 17 publications

References 5 publications

Dermoscopy of porokeratosis: results from a multicentre study of the International Dermoscopy Society

Dermoscopy of porokeratosis: results from a multicentre study of the International Dermoscopy Society

Dermatoscopy of Inflammatory Diseases in Skin of Color

Poroqueratosis de Mibelli en la edad pediátrica

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