Table 1.

Patients, clinical presentation and diagnostic procedures of the nail unit.

Diagnosis (cases)	Gender (Female/ Male)	Age in years (median)	Site (hands/ feet)	Clinical presentation	Bioptic procedure
Total (86)	54/32	46	56/27	81 melanonychia/ 5 nodular neoplasms	60 longitudinal biopsy/ 23 punch biopsy/ 3 tangential biopsy
Nail Melanoma (20)	14/6	61	14/3	16 longitudinal melanonychia/ 4 nodular neoplasms	12 longitudinal biopsy/ 5 punch biopsy/ 3 tangential biopsy
Benign melanocytic activation (51)	33/18	52	32/19	50 nail pigmentation/ 1 nodular mass of the nail bed	34 longitudinal biopsy/ 17 punch biopsy
Nevus (15)	8 / 7	25	10 / 3	15 nail pigmentations	14 longitudinal biopsy/ 1 punch biopsy