- 2025, Volume 83 - Number 1
- Published: September 3, 2024
Pigmented Bowen’s disease presenting clinically as longitudinal melanonychia
Lucas S. Madureira 1, Vivian W. Lederman 1, Julia C. K. El Dib 1, Paula F. M. Madureira 2, Lucas K. Fernandes 1, Eduardo C.N. Constantino 3
1 Department of Dermatology, Hospital de Base, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, São Paulo, Brazil; 2 Department of Dermatology, Faculdade Ceres, São José do Rio Preto, São Paulo, Brazil; 3 Department of Pathology, Hospital de Base, Faculdade de Medicina de São José do Rio Preto. São José do Rio Preto, São Paulo, Brazil
Lucas S. Madureira, Vivian W. Lederman, Julia C. K. El Dib, Paula F. M. Madureira, Lucas K. Fernandes, Eduardo C.N. Constantino
La información completa de afiliaciones y autor de correspondencia está disponible en la versión original en PDF.
*Correspondence: Eduardo C.N. Constantino, Email not available
Abstract
Bowen’s disease (BD) is a squamous cell carcinoma, which affects more the elderly population and is more prevalent in light-skinned individuals. It affects most frequently sun-exposed areas and generally manifests as a single erythematous, scaly, or crusted plaque, with irregular growth and generally precise limits. Its pigmented variant is less frequent and the nail localization is even more atypical. The gold-standard treatment is surgical excision with safety margins. This report presents a case of pigment BD, in a female patient, on the fifth toe of the right foot, manifesting as longitudinal melanonychia (ML). The lesion had been present for a few years but there was recent darkening. The objective of the work is to raise awareness of the importance of BD as a differential diagnosis of longitudinal ML and to highlight the importance of histopathological studies for diagnostic confirmation.
