X-ray diagnosis of kidney diseases

X-ray examination urological patient begins review radiography whole urinary tract. In some cases only on the basis of survey snapshot able to make a diagnosis. The use of contrast methods without the preliminary survey snapshot can lead to a diagnostic error, as the shadow of a contrast agent may be adopted for a shadow of a stone, etc., On the review of the x-ray image (usually 30 X 40 cm) can detect changes in the lumbar spine, ribs, the bones of the pelvis and upper third of the thighs. Changes in the bone system can explain the pain that had previously been regarded as a sign of kidney disease. On the overview picture able to watch the shadows of the lumbar muscles. The disappearance of shadows on the one hand indicates changes in the retroperitoneal space, most often inflammatory or neoplastic nature (parametric, gipernefroidnyi cancer). According to the survey snapshot is usually possible to find out the position, shape and size of the kidney. Review x-ray can detect concrements urinary tract (Fig. 12), which should be differentiated from foreign bodies, calcified lymph nodes mesentery, retroperitoneal space, fibromatous nodes of the uterus, calcification in the kidneys, which are observed in tumors, tuberculosis, and with the stones of the biliary tract and phlebolith.
For differential diagnosis for use of radiopaque research methods urinary tract (urography, pielografia)and do the pictures in various projections. The stones of kidneys profile images are detected in the form of shadows on the projection of the spine or about him, and the stones of the biliary tract - close to the front abdominal wall. Sighting shots allow to identify more clearly the different shade, in particular concrements. With this purpose, use a compression tubes. For better identification of the contours of the kidney can be used tomography (see).
To identify the state of upper urinary tract apply radiopaque research methods.

Fig. 12. Sightseeing x-ray of the left renal region; vaguely outlined the shadow of the kidneys; shadows of several large stones.