Squamous Cell Carcinoma and Bowen Disease in Nail Apparatus / 대한피부과학회지

ABSTRACT

Squamous cell carcinoma of the nail apparatus is a rare phenomenon. Because of its indolent course and similar presentation to other benign conditions, correct diagnosis in the early stages is practically difficult. We here report two cases of periungual squamous cell carcinoma and squamous cell carcinoma in situ (Bowen's disease). These cases emphasize the importance of extra vigilance and high suspicion when facing intractable atypical lesions on the fingers. Repetitive biopsy with exploratory nail plate extraction should be considered to acquire appropriate specimens, which is critical for early and correct diagnosis.