RADLEX synonyms : breast nodule; lesion; mass; nodular enhancement; breast density; focus; nodule; density; vague density;
Definition : BI-RADS: Mammo: A mass is 3-D and occupies space; it should be seen in two different
mammographic projections. It has a completely or partially convex-outward contour
and (if radiodense) is denser in the center than at the periphery. MRI: 3-D, space-occupying
lesion, convex-outward contour. US: A mass is 3-D and occupies space. With 2-D it
should be seen in two different planes; with volumetric acquisitions it should be
seen in three planes. Masses can be distinguished from normal anatomic structure,
such as ribs or fat lobules, using two or more projections and real-time scanning.;
BI-RADS: Mammo: A mass is 3-D and occupies space; it should be seen in two different
mammographic projections. It has a completely or partially convex-outward contour
and (if radiodense) is denser in the center than at the periphery. MRI: 3-D, space-occupying
lesion, convex-outward contour. US: A mass is 3-D and occupies space. With 2-D it
should be seen in two different planes; with volumetric acquisitions it should be
seen in three planes. Masses can be distinguished from normal anatomic structure,
such as ribs or fat lobules, using two or more projections and real-time scanning.