[A wooden splint under a fingernail led to subungual squamous cell carcinoma].

This case report is about a 75-year-old man, who developed a subungual squamous cell carcinoma (SCC) after having a wooden splint sitting under his fingernail for 20 years. There were no signs of infection, inflammation or tumour. The splint was removed, and histology indicated SCC. The patient underwent amputation, and histological analysis confirmed SCC without bone involvement. Subungual SCC is often misdiagnosed with delayed treatment as a consequence, and it gives a wide variety of symptoms. Treatment includes Mohs surgery and marginal excision. If SCC is diagnosed early, extensive surgery can be avoided.