Concordance of Dermoscopic Findings and Wood’s Lamp Findings in Melasma Patients

Article Information

Title: Concordance of Dermoscopic Findings and Wood’s Lamp Findings in Melasma Patients

Authors: Amna Nasar, Aamir Habib, Qamar Ud Din, Summaya Saleem, Sadaf Jamshaid, Usman Sajid

Journal: Pakistan Armed Forces Medical Journal (PAFMJ)

HEC Recognition History

Category	From	To
Y	2024-10-01	2025-12-31
Y	2023-07-01	2024-09-30
Y	2021-07-01	2022-06-30
Y	2020-07-01	2021-06-30
Y	1900-01-01	2005-06-30

Publisher: Army Medical College, Rawalpindi.

Country: Pakistan

Year: 2023

Volume: 73

Issue: 6

Language: English

Keywords: concordanceDermoscopeMelasmaWood’s lamp

Abstract

Objective: To find the concordance of Dermoscopic and Wood’s lamp findings in melasma patients.
Study Design: Cross-sectional study.
Place and Duration of Study: Combined Military Hospital, Kharian Pakistan, from Nov 2020 to Sep 2021.
Methodology: A total of sixty patients clinically classified as melasma were enrolled in the study. Clinical assessment was done, and patients were examined with Wood’s lamp and Dermoscope, and findings were recorded.
Results: The results of concordance of Wood’s lamp findings and Dermoscopic findings were significant as analysed by Kappa Statistics where value of k was 0.597 and p-value was &lt;0.001.
Conclusion: Dermoscopy is a newer and more advanced tool. It should be used as a screening and diagnostic tool for melasma and other pigmentation disorders in our Outpatient Departments for earlier subtyping of melasma, deciding the treatment choice and predicting prognosis.

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Research Objective

To find the concordance of Dermoscopic and Wood's lamp findings in melasma patients.

Methodology

Cross-sectional study involving sixty clinically classified melasma patients. Patients were examined using Wood's lamp and Dermoscope, and findings were recorded. Data was analyzed using SPSS version 24.0, with Kappa statistics used to determine the relation between Wood's lamp and dermoscopic findings.

Methodology Flowchart

                        graph TD;
    A["Enroll 60 Melasma Patients"] --> B["Clinical Assessment"];
    B --> C["Wood's Lamp Examination"];
    B --> D["Dermoscope Examination"];
    C --> E["Record Wood's Lamp Findings"];
    D --> F["Record Dermoscopic Findings"];
    E --> G["Data Analysis - SPSS"];
    F --> G;
    G --> H["Calculate Kappa Statistics"];
    H --> I["Determine Concordance"];
    I --> J["Draw Conclusions"];

Discussion

The study found a moderate agreement between Wood's lamp and dermoscopic findings in melasma patients. Dermoscopy is considered a more advanced tool for visualizing pigment distribution and depth, potentially aiding in earlier subtyping, treatment decisions, and prognosis prediction. Factors like sun exposure, pregnancy, and oral contraceptive use were also considered in relation to melasma.

Key Findings

The concordance between Wood's lamp findings and Dermoscopic findings was significant, with a Kappa statistic (k) of 0.597 and a p-value of <0.001. On Wood's lamp examination, 60% of patients had epidermal melasma, 23.33% had dermal melasma, and 16.66% had mixed melasma. Dermoscopy revealed epidermal melasma in 60%, dermal melasma in 26.66%, and mixed melasma in 13.33% of patients.

Conclusion

Dermoscopy is a newer and more advanced tool for screening and diagnosing melasma and other pigmentation disorders. It should be utilized in outpatient departments for earlier subtyping, treatment selection, and prognosis prediction.

Fact Check

1. A total of sixty patients were enrolled in the study. (Confirmed)
2. The Kappa statistic for concordance between Wood's lamp and dermoscopic findings was 0.597. (Confirmed)
3. On Wood's lamp examination, 36 (60%) patients were found to have epidermal melasma. (Confirmed)

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