[Xerography of diseases caused by microcrystalline deposits].

In this work, the authors have pointed out the role of xeroradiography in the diagnostic assessment of joint disorders associated to dystrophic microcalcifications (gout, pseudogout, acute calcific periarthritis). Within this class of pathology, the physical and technical characteristics of xeroradiography imaging (side-effect; showing of details; wide range of x-ray exposition; small density differences) are capable to depict all the joints and related structures involved. In addition particular attention was paid to drew out the joint disorders associated to dystrophic microcalcifications from the vague and non specific term of "arthropathy".