INTRODUCTION: Onychomatricoma is a rare benign tumor characterized by a clinical tetrad of a yellowish longitudinal band of varying thickness, splinter hemorrhages, longitudinal and transverse hypercurvature of the nail plate, and digitiform projections emerging from the nail matrix, leaving cavitations in the nail plate. We report a case of a female patient, 49 years old, with a history of a tumoral lesion in the third left toe for about four years, with a progressive increase in this period. Physical examination revealed an exuberant tumor lesion clinically compatible with onychomatricoma, confirmed by pathological examination after complete tumor excision.

Keywords: Nails; Nail diseases; Neoplasms

Onychocryptosis is a frequent nail disease, which most commonly affects the toes. It has some variants, including the little known "Harpoon Nail". The diagnosis is usually clinical, and the treatment is surgical, with different techniques described in the literature. We report the case of a 25-year-old man with a harpoon nail on the left hallux and the surgical method used for treatment with excellent results

Keywords: Nail diseases; Nails ingrown; Hallux