Laugier-Hunziker syndrome: an important differential diagnosis for Peutz-Jeghers syndrome.

Laugier-Hunziker syndrome (LHS) is a rare sporadic disorder, which shares some dermatological features with Peutz-Jeghers syndrome (PJS). However, whereas PJS is associated with hamartomatous gastrointestinal polyposis and carries a high risk of malignancy justifying intensive screening protocols, LHS is known to be an entirely benign disease with no systemic manifestations, which requires patient reassurance as the only intervention.