Differential diagnosis of renal cysts ?

Since many methods for the diagnosis of renal cysts in patients with renal cysts do not quite understand , so the differential diagnosis of renal cysts have a lot of people made ​​? So for everyone's questions today Xiaobian our brief look , then everyone would listen to this problem small series of renal cysts do introduce it !
Differential Diagnosis
( 1 ) Kidney cancer : showed lesions , but prone in deep , causing a more pronounced calyx bent. Hematuria common, and cysts disappear. When the pressure in the renal tumor above the psoas muscle in the abdominal plain film can not see the edge of the muscle , and the cyst is still visible. Evidence of metastasis ( eg on weight loss, fatigue, supraclavicular lymph node enlargement touched , chest X-ray showed a metastatic nodules ) , polycythemia occur , hypercalcemia , and ESR are suggestive of cancer . Need to remember is that cancerous cyst wall change will occur . If the cancer is renal vein blockage , excretory urography is not clear even without developing . Ultrasound and CT image is always the last to make the differential diagnosis. X-ray tomographic angiography and renal photography can show rich in blood vessels in the tumor , there is a contrast agent intensive " pond ", and cyst density is not affected. Proved to be in front of other diseases , all kidney lesions are assumed to cancer is wise.
( 2 ) polycystic kidney disease : As shown urography , the disease is almost always bilateral , distorted its own rules has become filled with calyx and pelvis occur. Simple renal cysts are much more isolated solitary . Polycystic kidney disease is often associated with renal dysfunction and hypertension , and renal cysts do not.
( 3 ) renal carbuncle : The disease is rare. When collecting history, can be found in skin infections had a history of fever and local pain before projecting a few weeks . Urography show its similarity with the cyst and tumor lesions , but inflammation around the affected kidney , the renal contour lumbar muscle shadow blurred. At this point, more than the fixed kidneys . The patient can be confirmed by comparing the position of the kidneys in the supine and upright when . Angiography can show an avascular lesions . 67Ga scan showed inflammation of the nature of the lesion , but the infection of simple renal cysts may also have a similar performance.
( 4 ) hydronephrosis : signs and symptoms consistent with the performance of simple renal cysts , but urography is different. Deformation caused by kidney cysts , and hydronephrosis is manifested due to the obstruction caused by the expansion of the renal pelvis and calyces . Acute or subacute hydronephrosis due to the increased pressure in the pelvis often produce more localized pain , infection and because it is easy to express complicated.
( 5 ) renal tumors ( such as adrenal , mixed retroperitoneal sarcoma ) : kidneys can shift , but few make the invasion and kidney calyceal deformation.
( 6 ) can hydatid disease : its cyst did not communicate with the pelvis, and simple renal cysts is difficult to identify, because there is not urine and hydatid larvae . Commonly found in X -ray examination of renal hydatid cyst wall calcification . Helpful when the diagnosis of skin sensitivity test .

Through the above description you have some understanding of renal cysts , if you have any questions in our online doctor consultation, or leave your contact information on our initiative you do for your free consultation .