Fig. 1.

– A: Well-circumscribed and yellowish multiple nodules located on the dorsal tongue. B-C: Oral examination revealed nodules with smooth surface and firm consistency located on the left (B) and right (C) labial commissures. D: Abundant amount of eosinophilic, amorphous, and extracellular material adjacent to a hyperplastic epithelium, showing salmon pink coloration (Congo red stain, original magnification, x100). E: Amorphous and extracellular material exhibiting apple-green birefringence at polarized light (Congo red stain at polarized light, original magnification, x100)