polycalyx malformation
Introduction
Introduction to polyrenal fistula It is a rare congenital anomaly in which the main renal pelvis and renal pelvis are located outside the renal parenchyma. The kidneys are often disc-shaped, and the renal blood vessels are often around the flattened renal hilum. Some people think that this abnormality is the result of premature ureteral bud development. This type of extrarenal renal pelvis often does not cause symptoms, but abnormal urine drainage can lead to infection and stones, and sometimes the renal pelvis becomes dull. The imaging features of this change are easily misdiagnosed as pyelonephritis or obstruction, if there is obstruction or infection. It is an indication for surgical treatment. basic knowledge The proportion of sickness: 0.002%-0.003% Susceptible people: no special people Mode of infection: non-infectious Complications: kidney stones
Cause
Causes of polyrenal malformation
Causes
The kidneys are often disc-shaped, and the renal blood vessels are often around the flattened renal hilum. Some people think that this abnormality is the result of premature ureteral bud development.
Prevention
Polymorphism prevention
The kidneys are often disc-shaped, and the renal blood vessels are often around the flattened renal hilum. Some people think that this abnormality is the result of premature ureteral bud development. This type of extrarenal renal pelvis often does not cause symptoms, but abnormalities in urine drainage can lead to infection and stones. Sometimes the renal pelvis becomes dull, and the imaging features of this change are easily misdiagnosed as pyelonephritis or obstruction. If there is obstruction or infection, it is an indication for surgical treatment.
Complication
Polyrenal malformation complications Complications kidney stones
Abnormal urine drainage can lead to infection and stones.
Symptom
Symptoms of polyrenal fistula, common symptoms, renal pelvis, blunt renal calculus, repeated infection
This type of extrarenal renal pelvis often does not cause symptoms, but abnormalities in urine drainage can lead to infection and stones. A calculus of kidney is a stone that occurs in the renal pelvis, renal pelvis, and junction of the renal pelvis and ureter. Most of them are located in the renal pelvis and renal parenchyma. The renal parenchymal stones are rare. The plain film shows that the kidney has single or multiple circular, oval or blunt triangular dense shadows. The density is high and uniform, the edges are smooth, but there are also matte mulberry . The kidney is the main part of the urinary calculi. The stones in any other part can be originated in the kidney. The ureteral stones are almost all from the kidneys, and the kidney stones are more likely to directly damage the kidneys than any other part of the stone. Therefore, early diagnosis and treatment are very important.
Examine
Examination of polymorphism
CT diagnosis, sometimes the renal pelvis becomes dull, the imaging features of this change are easily misdiagnosed as pyelonephritis (inflammation of the kidney sputum, mostly caused by bacterial infection, usually associated with urinary tract inflammation) or obstruction.
CT is different from X-ray imaging. It is a reconstructed image obtained by scanning the human body with X-ray beam, obtaining information, and processing by computer. What is shown is a cross-sectional anatomical image with a density resolution that is significantly better than an X-ray image.
Diagnosis
Diagnosis and differentiation of polypyrexia
Should be differentiated from pyelonephritis or obstruction.
Pyelonephritis: refers to inflammation of the kidney sputum, mostly caused by bacterial infection, usually associated with urinary tract inflammation, clinically difficult to distinguish strictly, according to clinical course and disease, pyelonephritis can be divided into acute and chronic two phases, chronic Pyelonephritis is an important cause of chronic renal insufficiency.
Obstructive nephropathy refers to urinary tract circulation disorder, which produces backward pressure and affects renal pathology caused by normal physiology of renal parenchyma. The degree of obstruction is complete and partial; the range is bilateral and unilateral; the time has acute sudden and slow progressive; the upper urinary tract and lower urinary tract are located; the upper urinary tract is above the ureter-bladder junction (ureter, pelvis, ureter-kidney junction); lower urinary tract is located below the ureter-bladder junction (urethral, bladder neck, bladder-ureter junction). The influence of the kidney is related to the degree of obstruction and time. Early removal of the obstruction can cause the lesion to disappear, and in the advanced stage, the renal function is permanently lost and cannot be reversed.
