Open AccessMonodactylous Longitudinal Melanonychia: A Sign of Bowen’s Disease in Skin of Color
Author(s) -
Natalie M. Williams,
Aderonke Obayomi,
Julio A. Díaz-Pérez,
Brian Morrison
Publication year - 2021
Publication title -
skin appendage disorders
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.773
H-Index - 13
eISSN - 2296-9195
pISSN - 2296-9160
DOI - 10.1159/000514221
Subject(s) - dermatology , nail (fastener) , nail matrix , medicine , sign (mathematics) , differential diagnosis , basal cell , skin cancer , nail plate , bowen's disease , pathology , cancer , materials science , mathematical analysis , mathematics , metallurgy , psoriasis
Monodactylous longitudinal melanonychia (LM) may represent both benign and malignant dermatologic disorders. However, squamous cell carcinoma in situ (SCCis) is not commonly considered in this setting. Case Presentation: In this report, we present 2 cases of SCCis of the nail matrix in patients with skin of color who presented with monodactylous LM involving the lateral aspect of the nail. Conclusion: These cases suggest that SCCis should be included in the differential diagnosis for monodactylous LM, especially when involving the lateral nail plate in darker skin.