Monodactylous Longitudinal Melanonychia: A Sign of Bowen’s Disease in Skin of Color

2021 ◽  
Vol 7 (4) ◽  
pp. 306-310
Author(s):  
Natalie M. Williams ◽  
Aderonke O. Obayomi ◽  
Julio A. Diaz-Perez ◽  
Brian W. Morrison
Keyword(s):  
Squamous Cell Carcinoma ◽  
Differential Diagnosis ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Carcinoma In Situ ◽  
Nail Plate ◽  
Lateral Aspect ◽  
Case Presentation ◽  
Longitudinal Melanonychia

<b><i>Introduction:</i></b> 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. <b><i>Case Presentation:</i></b> 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. <b><i>Conclusion:</i></b> 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.

Melanonychia Following Mohs Surgery for Recurrent Squamous Cell Carcinoma in Situ of the Nail Bed

2008 ◽  
Vol 12 (4) ◽  
pp. 194-197 ◽  
Author(s):  
Jules B. Lipoff ◽  
Alon Scope ◽  
Klaus J. Busam ◽  
Kishwer S. Nehal
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Carcinoma In Situ ◽  
Nail Plate ◽  
Diagnostic Dilemma ◽  
Mohs Surgery ◽  
Nail Bed ◽  
Recurrent Squamous Cell Carcinoma

Background: Longitudinal melanonychia (LM) is characterized by the appearance of a longitudinal pigmented band in the nail plate. Melanonychia can occur from many causes, including racial predisposition, trauma, drugs, pregnancy, Addison disease, Peutz-Jeghers syndrome, Laugier-Hunziker syndrome, Bowen disease, onychomycosis, benign nail matrix nevi, and melanoma. Objective: We present a case of diffuse melanonychia developing several months following Mohs surgery for a human papillomavirus-induced recurrent squamous cell carcinoma in situ of the nail bed. Conclusions: This case illustrates the diagnostic dilemma in determining the etiology of the melanonychia and considers the differential diagnosis.

Factors Influencing Squamous Cell Carcinoma In Situ Recurrence and Implications for Treatment Choice

2018 ◽  
Vol 44 (5) ◽  
pp. 613-620 ◽  
Author(s):  
Andrew J. Matsumoto ◽  
Adam R. Schmitt ◽  
Logan M. Skelley ◽  
Christian L. Baum
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Carcinoma In Situ ◽  
Treatment Choice ◽  
Factors Influencing

Pigmented squamous cell carcinoma in situ of the eyelid

2017 ◽  
Vol 58 (4) ◽  
pp. e275-e276
Author(s):  
Michelle T. Sun ◽  
Saul Rajak ◽  
Craig James ◽  
Shyamala C. Huilgol ◽  
Dinesh Selva
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Carcinoma In Situ
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