Researchers conducted the study for analyzing the clinical, histologic, immunohistochemical and chromosomal features of early subungual melanoma (SM).
Fifty?two in situ and 13 thin (Breslow thickness ? 1.0 mm) SM cases have been retrospectively reviewed.
Longitudinal melanonychia involving a single digit was present in all patients and the thumb was most affected (35/65, 53.8%).
This is the largest early SM single-institution study on Asian populations and the largest FISH-tested cohort.
