[Effects of xeroradiographic contour amplification in intramammary calcifications (author's transl)].

The pronounced edge-effect occurring in xeroradiography of intramammary calcifications leads to a change in size of the object, namely, a reduction in the positive and an enlargement in the negative print, to a hard-to-evaluate zone in the border of the object which is in about the same size range for both developing procedures. The extent of edge-enhancement is directly related to the structures in the immediate neighborhood. Form and density of microcalcifications can be better assessed with the positive procedure.