[Nail unit blue melanocyte nevi: 2 case reports].
BACKGROUND
Nail unit blue nevus is a rare and benign melanocyte proliferation of the nail unit matrix.


METHODS
We report two cases of nail matrix blue nevi with a blue-black spot of the lunular area associated in the first case with a longitudinal nail groove.


CONCLUSIONS
The analysis of our cases and of the previously reported cases give us the opportunity to describe different clinical and histological presentations.
Moulonguet-Michau
I
I
Policlinique de Dermatologie, Hôpital Saint-Louis, 1, avenue Claude Vellefaux, 75475 Paris 10. isamm@club-internet.fr
Abimelec
P
P
D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D009260:Nail Diseases / Q000473:pathology* / Q000601:surgery; D009508:Nevus, Pigmented / Q000473:pathology* / Q000601:surgery