Simple (isolated) renal cysts inspection

(1) kidney cancer: a space-occupying lesions, but prone to deep, which led to a more pronounced renal calyceal bending. Hematuria common, and are not cysts. When the pressure in the renal parenchyma tumor above the psoas muscle in the abdominal plain film on the verge of not muscle, and cysts are still visible. In the transfer of evidence (such as weight loss, fatigue, touched on the leaching node enlargement collarbone, chest radiography showed metastatic nodules), erythrocytosis, and hypercalcemia are tips for speeding up ESR cancer. Need to remember that the cyst wall will be changed in cancer. If cancer renal vein was blocked urinary excretion of contrast enhancement on unclear or not. Ultrasound and CT images are always the last to do differential diagnosis. Renal CT angiography X-ray tomography can be displayed on the rich vascular tumor, a contrast agent-intensive "ponds" and cyst density is not affected. Been proven in other diseases, all kidney space-occupying lesions are presumed to have cancer is wise.
(2) polycystic kidney disease: As urography shows, the disease is almost always bilateral in nature, diffuse lights and renal pelvis distorted become its own rules. Simple renal cysts than that of isolated single. Polycystic kidney disease is often associated with renal dysfunction and hypertension, and renal cysts were not.
(3) renal Carbuncle: This rare disease. Acquisition history, the processes can be found in local pain and fever a few weeks ago had skin infection. Urography show lesions and tumors and cysts similar to, but because of kidney inflammation around, which makes the kidney contour blurred video lumbar muscle. At this point, more than the kidney fixed. The patients in the supine and upright position when compared kidney can be confirmed. Angiography can show that a non-vascular lesions. 67Ga scan can show that the inflammatory nature of the lesions, but infection simple renal cysts may also have similar performance.
(4) hydronephrosis: Symptoms and signs with the performance of simple renal cysts exactly the same, but urography is different. Kidney cyst caused deformation, and hydronephrosis performance as a result of the obstruction caused by renal calyceal and the expansion of the renal pelvis. Acute or subacute hydronephrosis due to the increased pressure within the pelvis often have more limited pain, and because of its performance and easy infection complicated.
(5), renal tumors (such as the adrenal gland, mixed retroperitoneal sarcoma): kidney can shift, but few transgression and kidney and renal calyceal deformation.
(6) can hydatid disease: its cyst and pelvis not the same, simple renal cysts and difficult to identify because there is not in urine and hydatid larvae. In the X-ray examination often found echinococcosis renal cyst wall calcification. Skin disease diagnostic tests sensitive help.