The 'shark mouth' flap approach for digital glomus tumours in 24 patients: technique and clinical outcomes.

This retrospective, single-centre study was carried out on patients with digital subungual glomus tumours. We describe a subperiosteal approach with a 'shark mouth' flap containing the nail plate and nail bed as a single unit, providing ideal exposure and easy access to the tumour. It combines the advantages of the transungual and lateral approaches, whether the subungual tumours are located centrally, peripherally or under the germinal matrix.