This document discusses two conditions: chloasma and blue naevus. Chloasma is a melanotic hyperpigmentation that commonly appears on the face during late pregnancy. Blue naevus is a type of melanocytic nevus, or mole, that appears blue in color due to pigment being deeper in the skin than ordinary moles. Involvement of the oral mucosa by chloasma is extremely rare. The document provides brief descriptions of these two conditions and concludes by asking if there are any questions.