label: Oral melanoacanthoma
label_lc: oral melanoacanthoma
description: "Oral melanoacanthoma usually presents as an asymptomatic, ill-defined, rapidly enlarging, macular pigmentation. Although most lesions are heavily pigmented, the coloration may or may not be uniform. Any mucosal site may be affected, but buccal mucosal involvement is most common. Although typically solitary, rare patients may present with multifocal lesions."