Dermoscopy Differentiates Guttate Psoriasis From a Mimicker—Pityriasis Rosea

Background: Guttate psoriasis (GP) and pityriasis rosea (PR) are a part of papulosquamous disorders that have very similar clinical features and often require histopathology to confirm the diagnosis. Dermoscopy has emerged as a noninvasive, cost-effective technique that can aid in the diagnosis of...

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Autores principales:	Meena Makhecha, Tishya Singh, Yasmeen Khatib
Formato:	article
Lenguaje:	EN
Publicado:	Mattioli1885 2021
Materias:	guttate psoriasis pityriasis rosea dermoscopy mimicker Dermatology RL1-803
Acceso en línea:	https://doaj.org/article/e0fee3bde7d745b885a72666fad0c1fe
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spelling	oai:doaj.org-article:e0fee3bde7d745b885a72666fad0c1fe2021-11-17T08:28:21ZDermoscopy Differentiates Guttate Psoriasis From a Mimicker—Pityriasis Rosea10.5826/dpc.1101a1382160-9381https://doaj.org/article/e0fee3bde7d745b885a72666fad0c1fe2021-01-01T00:00:00Zhttp://dpcj.org/index.php/dpc/article/view/1251https://doaj.org/toc/2160-9381 Background: Guttate psoriasis (GP) and pityriasis rosea (PR) are a part of papulosquamous disorders that have very similar clinical features and often require histopathology to confirm the diagnosis. Dermoscopy has emerged as a noninvasive, cost-effective technique that can aid in the diagnosis of inflammatory skin diseases like GP and PR. Objective: To study and compare the dermoscopic features of GP and PR. Methods: Twenty consecutive patients each with GP or PR were enrolled in the study. The diagnoses of GP and PR were made clinically and on histopathology. Dermoscopic images were taken of the representative lesions from each patient using a manual dermoscope attached to a digital camera after applying ultrasound gel. Vascular morphology, vascular arrangement, background color, along with color and distribution of scales were noted in each case. Statistical analysis was done using chi-square test to determine the significance of findings in both groups. Results: The combination of a bright red background with dotted vessels in uniform diffuse distribution with diffuse white scales was highly specific for the diagnosis of GP. Lesions of PR showed a red background with dotted blood vessels in nonspecific distribution. Scales were either white in color or brown pigmented with patchy distribution. Brown pigmentation and brown dots were additional findings in cases of PR. Conclusion: Combinations of dermoscopic patterns can aid in the diagnosis of GP and PR in the majority of the cases. Meena MakhechaTishya SinghYasmeen KhatibMattioli1885articleguttate psoriasispityriasis roseadermoscopymimickerDermatologyRL1-803ENDermatology Practical & Conceptual, Vol 11, Iss 1 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	guttate psoriasis pityriasis rosea dermoscopy mimicker Dermatology RL1-803
spellingShingle	guttate psoriasis pityriasis rosea dermoscopy mimicker Dermatology RL1-803 Meena Makhecha Tishya Singh Yasmeen Khatib Dermoscopy Differentiates Guttate Psoriasis From a Mimicker—Pityriasis Rosea
description	Background: Guttate psoriasis (GP) and pityriasis rosea (PR) are a part of papulosquamous disorders that have very similar clinical features and often require histopathology to confirm the diagnosis. Dermoscopy has emerged as a noninvasive, cost-effective technique that can aid in the diagnosis of inflammatory skin diseases like GP and PR. Objective: To study and compare the dermoscopic features of GP and PR. Methods: Twenty consecutive patients each with GP or PR were enrolled in the study. The diagnoses of GP and PR were made clinically and on histopathology. Dermoscopic images were taken of the representative lesions from each patient using a manual dermoscope attached to a digital camera after applying ultrasound gel. Vascular morphology, vascular arrangement, background color, along with color and distribution of scales were noted in each case. Statistical analysis was done using chi-square test to determine the significance of findings in both groups. Results: The combination of a bright red background with dotted vessels in uniform diffuse distribution with diffuse white scales was highly specific for the diagnosis of GP. Lesions of PR showed a red background with dotted blood vessels in nonspecific distribution. Scales were either white in color or brown pigmented with patchy distribution. Brown pigmentation and brown dots were additional findings in cases of PR. Conclusion: Combinations of dermoscopic patterns can aid in the diagnosis of GP and PR in the majority of the cases.
format	article
author	Meena Makhecha Tishya Singh Yasmeen Khatib
author_facet	Meena Makhecha Tishya Singh Yasmeen Khatib
author_sort	Meena Makhecha
title	Dermoscopy Differentiates Guttate Psoriasis From a Mimicker—Pityriasis Rosea
title_short	Dermoscopy Differentiates Guttate Psoriasis From a Mimicker—Pityriasis Rosea
title_full	Dermoscopy Differentiates Guttate Psoriasis From a Mimicker—Pityriasis Rosea
title_fullStr	Dermoscopy Differentiates Guttate Psoriasis From a Mimicker—Pityriasis Rosea
title_full_unstemmed	Dermoscopy Differentiates Guttate Psoriasis From a Mimicker—Pityriasis Rosea
title_sort	dermoscopy differentiates guttate psoriasis from a mimicker—pityriasis rosea
publisher	Mattioli1885
publishDate	2021
url	https://doaj.org/article/e0fee3bde7d745b885a72666fad0c1fe
work_keys_str_mv	AT meenamakhecha dermoscopydifferentiatesguttatepsoriasisfromamimickerpityriasisrosea AT tishyasingh dermoscopydifferentiatesguttatepsoriasisfromamimickerpityriasisrosea AT yasmeenkhatib dermoscopydifferentiatesguttatepsoriasisfromamimickerpityriasisrosea
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Dermoscopy Differentiates Guttate Psoriasis From a Mimicker—Pityriasis Rosea

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