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Dermoscopy Clues in Pigmented Bowen's Disease.
Daniela Gutiérrez-Mendoza1, Roberto Narro-Llorente, Marcia Karam-Orantes
1Department of Surgical Dermatology, Hospital General "Dr. Manuel Gea González", Calzada de Tlalpan 4800, Col. Toriello Guerra, Tlalpan, CP 14000, D.F., México, Mexico.
Dermatology Research and Practice
|October 2, 2010
Summary
Dermoscopy aids in diagnosing pigmented Bowen's disease (pBD), a rare pigmented lesion. Key dermoscopic features include glomerular vessels and regular brown globules, helping differentiate it from melanoma.
Area of Science:
- Dermatology
- Dermopathology
Background:
- Pigmented lesions (PLs) present diagnostic challenges due to overlapping clinical features.
- Dermoscopy enhances diagnostic accuracy for ambiguous melanocytic lesions and aids in detecting various PLs, including melanoma and basal cell carcinoma.
Observation:
- This study retrospectively analyzed dermoscopic images of two biopsy-proven cases of pigmented Bowen's disease (pBD).
- Key dermoscopic features observed were regular brown globules, structureless brown and blue pigmentation, glomerular vessels, hypopigmented regression-like areas, and keratosis.
Findings:
- The observed dermoscopic features in the pBD cases align with previously reported findings in the literature.
- Dermoscopic diagnosis of pBD relies on identifying glomerular vessels, regular brown globules, and keratosis, while excluding criteria for melanocytic lesions.
Implications:
- Pigmented Bowen's disease, though rare, should be considered in the differential diagnosis of pigmented lesions, particularly when melanoma is suspected.
- Dermoscopy is a valuable noninvasive tool for improving the diagnostic accuracy of challenging pigmented skin lesions.
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