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Dermatology Research and Practice
Volume 2010, Article ID 543091, 3 pages
Case Report

Dermoscopic Features of Pigmented Bowen's Disease in a Japanese Female Mimicking Malignant Melanoma

1Department of Dermatology, Tokyo Women's Medical University Medical Center East, 2-1-10, Nishi-Ogu, Arakawa-ku,Tokyo 116-8567, Japan
2Department of Pathology, Tokyo Women's Medical University Medical Center East, 2-1-10, Nishi-Ogu, Arakawa-ku, Tokyo 116-8567, Japan

Received 14 May 2010; Accepted 29 June 2010

Academic Editor: Giovanni Pellacani

Copyright © 2010 Takayuki Inoue et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Various structures have been reported for dermoscopic features of pigmented Bowen's disease (BD), which could be a mimic of various pigmented skin lesions. A 79-year-old Japanese woman presented with a 3-year history of brown-black macule on her right upper arm without symptom. Dermoscopic examination demonstrated irregular flossy streaks, irregular brown dots/globules, blue-whitish regression structures, and overlaying whitish scaly areas. We suspected pigmented skin lesions including seborrheic keratosis, pigmented eccrine poroma, and malignant melanoma and excised completely with a 5 mm margin. Histopathological features were consistent with a diagnosis of pigmented BD. Although similar dermoscopic features might be revealed in pigmented skin lesions and it may occasionally be difficult to distinguish between pigmented BD and other pigmented skin lesions, dermoscopy would be useful in speculating pathologic features of pigmented BD.