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Differentiation of pityriasis rubra pilaris from plaque psoriasis by dermoscopy.
Arch Dermatol Res. 2017 May; 309(4):311-314.AD

Abstract

Pityriasis rubra pilaris (PRP) and plaque psoriasis (PP) are two distinctive erythemato-squamous skin diseases that often have to be differentiated from each other and from other similar dermatoses. Dermoscopy has been proven to aid the clinical diagnosis of several inflammatory disorders, minimizing the need for skin biopsy. Our aim was to determine the dermoscopic patterns of PRP compared to PP and to assess the significance of certain dermoscopic criteria in the diagnosis of PRP. This case-control study included 11 patients with biopsy proven PRP and 25 patients with biopsy proven plaque psoriasis. The most recently developed lesion of each patient was examined by non-contact dermoscopy. Whitish keratotic plugs and linear vessels in yellowish background are significant dermoscopic features of PRP compared to white diffuse scales and dotted vessels in a light red background in PP. In conclusion, PRP and PP reveal specific distinguishing dermoscopic patterns that may assist in their clinical diagnosis and may also be useful for the differential diagnosis from other resembling dermatoses.

Authors+Show Affiliations

Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Assiut University, Assiut, Egypt.Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Assiut University, Assiut, Egypt. saharsotohy@gmail.com.Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Assiut University, Assiut, Egypt.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28280914

Citation

Abdel-Azim, N E., et al. "Differentiation of Pityriasis Rubra Pilaris From Plaque Psoriasis By Dermoscopy." Archives of Dermatological Research, vol. 309, no. 4, 2017, pp. 311-314.
Abdel-Azim NE, Ismail SA, Fathy E. Differentiation of pityriasis rubra pilaris from plaque psoriasis by dermoscopy. Arch Dermatol Res. 2017;309(4):311-314.
Abdel-Azim, N. E., Ismail, S. A., & Fathy, E. (2017). Differentiation of pityriasis rubra pilaris from plaque psoriasis by dermoscopy. Archives of Dermatological Research, 309(4), 311-314. https://doi.org/10.1007/s00403-017-1727-2
Abdel-Azim NE, Ismail SA, Fathy E. Differentiation of Pityriasis Rubra Pilaris From Plaque Psoriasis By Dermoscopy. Arch Dermatol Res. 2017;309(4):311-314. PubMed PMID: 28280914.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Differentiation of pityriasis rubra pilaris from plaque psoriasis by dermoscopy. AU - Abdel-Azim,N E, AU - Ismail,S A, AU - Fathy,E, Y1 - 2017/03/09/ PY - 2016/11/21/received PY - 2017/02/22/accepted PY - 2017/02/03/revised PY - 2017/3/11/pubmed PY - 2017/4/22/medline PY - 2017/3/11/entrez KW - Dermoscopy KW - Pityriasis rubra pilaris KW - Psoriasis SP - 311 EP - 314 JF - Archives of dermatological research JO - Arch. Dermatol. Res. VL - 309 IS - 4 N2 - Pityriasis rubra pilaris (PRP) and plaque psoriasis (PP) are two distinctive erythemato-squamous skin diseases that often have to be differentiated from each other and from other similar dermatoses. Dermoscopy has been proven to aid the clinical diagnosis of several inflammatory disorders, minimizing the need for skin biopsy. Our aim was to determine the dermoscopic patterns of PRP compared to PP and to assess the significance of certain dermoscopic criteria in the diagnosis of PRP. This case-control study included 11 patients with biopsy proven PRP and 25 patients with biopsy proven plaque psoriasis. The most recently developed lesion of each patient was examined by non-contact dermoscopy. Whitish keratotic plugs and linear vessels in yellowish background are significant dermoscopic features of PRP compared to white diffuse scales and dotted vessels in a light red background in PP. In conclusion, PRP and PP reveal specific distinguishing dermoscopic patterns that may assist in their clinical diagnosis and may also be useful for the differential diagnosis from other resembling dermatoses. SN - 1432-069X UR - https://www.unboundmedicine.com/medline/citation/28280914/Differentiation_of_pityriasis_rubra_pilaris_from_plaque_psoriasis_by_dermoscopy_ DB - PRIME DP - Unbound Medicine ER -