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KMID : 0363220210590010033
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Korean Journal of Dermatology
2021 Volume.59 No. 1 p.33 ~ p.37
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Clinical Features of Verruca Plana and Verruca Plana-Like Seborrheic Keratosis
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Lee Ji-Young
Lee Ai-Young
Lee Seung-Ho
Hong Jong-Soo
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Abstract
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Background: Differentiating between verruca plana (VP) and VP-like seborrheic keratosis (SK) is difficult and little research has been performed on the topic.
Objective: The aim of this study was to elucidate clinical differences between these two diseases.
Methods: We conducted a retrospective review of cases of VP and VP-like SK identified by biopsy. Demographics (age
and gender) and clinical information (location, color, distribution, and shape) were collected.
Results: A total of 224 cases were identified. Thirty-nine cases were finally diagnosed with VP (17.4%) and 159 cases with VP-like SK (71.0%). The rest of the diagnoses accounted for 26 cases. On multivariate analysis, extremities (odds ratio [OR] 7.91, confidence interval [CI] 2.61∼23.93), flesh color (OR 3.69, CI 1.43∼9.49), erythematous color (OR 36.83, CI 7.50∼180.84), and clustered distribution (OR 4.73, CI 1.66∼13.46) were significantly associated with VP. Shape is not predictive in VP occurence.
Conclusion: We provide clinical information regarding the differentiation of VP and VP-like SK, which should prove useful in clinical dermatological practice.
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KEYWORD
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Differential diagnosis, Seborrheic keratosis, Verruca
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