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Updated: Jan 24, 2026
13:51
Cross-Modal Multivariate Pattern Analysis
Published on: November 9, 2011
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Dermoscopic pattern of pityriasis versicolor
Mahesh Mathur1, Prakash Acharya1, Alina Karki1
1Department of Dermatology, College of Medical Sciences, Bharatpur, Nepal.
Clinical, Cosmetic and Investigational Dermatology
|May 24, 2019
Summary
Dermoscopy reveals distinct patterns in pityriasis versicolor (PV) skin lesions. This study details key dermoscopic features for hypopigmented and hyperpigmented PV, aiding diagnosis.
Area of Science:
- Dermatology
- Medical Imaging
Background:
- Pityriasis versicolor (PV) is typically diagnosed clinically, presenting as skin patches.
- Dermoscopy is an emerging noninvasive diagnostic tool for skin conditions.
- Limited research exists on the specific dermoscopic presentation of PV.
Purpose of the Study:
- To characterize the dermoscopic features of both hypopigmented and hyperpigmented pityriasis versicolor lesions.
Main Methods:
- Retrospective analysis of dermoscopic images from 125 patients with PV.
- Evaluation of 178 PV lesions (164 hypopigmented, 14 hyperpigmented) for predefined criteria.
Main Results:
- Nonuniform pigmentation was the most frequent feature in both lesion types (92.68% hypopigmented, 100% hyperpigmented).
- Scales were observed in 86.56% of hypopigmented and 92.86% of hyperpigmented lesions.
- Patchy scaling dominated hypopigmented lesions, while scaling in furrows was more common in hyperpigmented ones.
Conclusions:
- This study provides the most extensive description of PV dermoscopic features to date.
- Identified features enhance diagnostic capabilities.
- Dermoscopy shows promise as a valuable auxiliary tool for diagnosing pityriasis versicolor.
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