Auxiliary Examination of Polycystic Kidney Disease

Polycystic Kidney Disease is a kind of genetic Kidney Disease and it usually occurs to patients among 30 to 40 years old. An early diagnosis is important to control this disease and get a good prognosis. Generally, besides family history, this disease can be diagnosed with the help of other auxiliary examinations, which will supply an accurate inspection result for doctor’s diagnosis.

(1) Routine Urine Test: no abnormality can be found in the early stage. There is microscopic hematuria in middle stage and parts of patients may have proteinuria. If this disease is complicated by stone or infection, white cells and pus cells can be found in a urine test.

(2) Urine osmotic pressure test: In early stage of pathological changes, there may appear manifestation that renal concentration function has been damaged even there are only several cysts. This change is not completely related to damage of renal structure. It may relate to adverse reaction of kidneys to antidiuretic hormone. The decline of renal concentration function is earlier than the decline of glomerular filtration rate (GFR).

(3) As the loss of renal compensatory function, serum creatinine increases progressively. Creatinine Clearance Rate is a sensitive index.
(4) Kidney Urine Bladder (KUB) can show the image of kidneys enlarged with an irregular outline.

(5) Intravenous pyelogram (IVP) can show sign that renal pelvis and calices have deformed due to compression. Renal pelvis and calices has a peculiar shape of spider. The shape of renal pelvis is flat and wide. The neck of renal pelvis is drawn out and become thin, which usually shows curve shape.

(6) B ultrasound shows there are lots of dark zones in bilateral kidneys.
(7) CT shows bilateral kidneys is enlarged with a lobulated outline. There are many thin-wall cysts which are filled with fluid.


With the above examinations, we not only understand the detailed physical condition of patients, but also provide an accurate result for doctor’s diagnosis. If you need more information about the diagnosis of Polycystic Kidney Disease, you can email to kidney-treatment@hotmail.com or consult our doctors online for free.