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Comparative Study of Clinical and Dermoscopic Features in Nail Psoriasis
Naphisabet Wanniang1, Annam Navya1, Varadraj Pai1
1Department of Dermatology, Goa Medical College, Goa, India.
Indian Dermatology Online Journal
|February 15, 2020
Summary
Dermoscopy enhances the detection of nail psoriasis, revealing subtle changes missed by clinical examination. This noninvasive method offers a clearer insight into psoriatic nail involvement, improving diagnostic accuracy.
Area of Science:
- Dermatology
- Oncology
Background:
- Nail changes affect approximately 40% of psoriasis patients.
- Nail psoriasis can be an early or isolated sign of the disease.
Purpose of the Study:
- To evaluate dermoscopic features of nail psoriasis.
- To compare dermoscopic findings with clinical assessments.
- To correlate disease duration with skin and nail involvement severity.
Main Methods:
- 50 patients with psoriatic nail changes were studied.
- Psoriasis Area and Severity Index (PASI) assessed disease severity.
- Nail Psoriasis Severity Index (NAPSI) evaluated nail involvement.
- Clinical and dermoscopic examinations were performed.
Main Results:
- Pitting was the most common feature (84%) observed.
- Dermoscopy yielded significantly higher NAPSI scores than clinical examination (P < 0.05).
- Salmon patches and splinter hemorrhages were better visualized with dermoscopy.
- Disease duration strongly correlated with nail involvement duration (R=0.901).
Conclusions:
- Nail dermoscopy is an effective, noninvasive tool for detecting subtle psoriatic nail changes.
- Dermoscopy provides superior visualization compared to clinical evaluation.
- This method aids in a more comprehensive assessment of nail psoriasis.
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