Assertion: amalgam tattoo | /r/HasAspect | no radiographic features
Facets:
value: in many cases
type: TEMPORAL
Source sentences:
text: The diagnosis is clinical.:138 Amalgam tattoo can be distinguished from other causes of localized oral pigmentation because it does not change significantly in size or color,:138 although it may appear to slowly enlarge for several months after the initial implantation of the metal particles.:183 Some amalgam tattoos appear radio-opaque on radiographs (i.e. they show up on x-rays),:138 although in many cases amalgam tattoos have no radiographic features since the responsible particle(s) of amalgam are very small even though clinically the area of discolored mucosa is much larger.