Which One Is the Best for Living Donation: A Multiple-Artery Left Kidney Nephrectomy or a Right Kidney Nephrectomy?
Diogo Nunes‐CarneiroAndré Marques-PintoCarlos VeigaIsaac BragaJoão CabralManuela AlmeidaVítor CavadasAntónio Castro‐HenriquesRui AlmeidaAvelino FragaMiguel Silva‐Ramos
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Acute tubular necrosis
Renal vein
Renal vein thrombosis
We present the sonographic findings of fetal renal vein thrombosis in a series of 6 patients. The mean gestational age at diagnosis was 31.2 weeks. Four cases were unilateral, and 2 were bilateral. The most common findings were renal enlargement and intrarenal vascular calcifications, followed by increased renal parenchymal echogenicity. Inferior vena cava thrombosis was found in 4 patients and common iliac vein thrombosis in 2. Fetal renal vein thrombosis is an uncommon diagnosis with characteristic sonographic findings. The presence of these findings should prompt Doppler interrogation of the renal vein and inferior vena cava to confirm the diagnosis.
Renal vein thrombosis
Renal vein
Echogenicity
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Renal vein thrombosis
Renal vein
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PURPOSE: To determine the magnetic resonance (MR) imaging characteristics of renal lesions in patients who undergo technically successful partial nephrectomy. MATERIALS AND METHODS: Between February 1991 and September 1997, 38 patients (41 lesions) who underwent partial nephrectomy at a single institution were preoperatively evaluated with contrast material–enhanced, multiplanar, surface-coil MR imaging. Imaging findings that could affect the decision to perform partial nephrectomy were retrospectively evaluated: tumor size; tumor location; presence of pseudocapsule; suspected tumor invasion of renal sinus fat, renal collecting system, renal vein, or perinephric fat; and morphologic and physiologic status of the contralateral kidney. Correlation was made with surgical and pathologic findings. RESULTS: Thirty-three of 41 lesions (80%) were renal cell carcinomas, five were oncocytic neoplasms (12%), two were hemorrhagic cysts (5%), and one was an angiomyolipoma (2%). Twenty-four of 41 (59%) lesions had pseudocapsules. In most cases, the perinephric fat (n = 38 [93%]), the renal sinus fat (n = 31 [76%]), and the renal collecting system (n = 39 [95%]) were correctly interpreted as being uninvolved by tumor. CONCLUSION: Renal neoplasms amenable to partial nephrectomy can be identified and characterized with contrast-enhanced, multiplanar, surface-coil MR imaging.
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Angiomyolipoma
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Renal vein
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Renal vein thrombosis
Renal vein
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Renal vein
Renal vein thrombosis
Excretory system
Pyelogram
Renal mass
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The definitive diagnosis of renal vein thrombosis (RVT) depends upon the demonstration of a persistent filling defect or defects within the renal vein by renal venography or selective renal angiography during the venous phase. We describe here the utilization of digital subtraction venography to diagnose RVT in a young nephrotic male patient. We injected 40 cm3 of contrast substance in a foot vein, having 4-second delayed films over the inferior vena cava and renal veins. We demonstrated a retrograde propagation of the dye into the right renal vein indicating intrarenal venous thrombosis. 'Renal vein thrombosis and digital venography'.
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Renal vein
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We reviewed our clinical experience of the past 1 1/2 years using computed tomography (CT) in cases of suspected renal vein thrombosis; we detected three cases and correctly excluded renal vein thrombosis in an additional three patients. Because of our limited clinical experience, we surgically created left renal vein thrombosis in five dogs. In all animals abnormal CT findings were present. Abnormalities in both humans and animals included direct demonstration of low attenuation thrombus in the renal vein, renal enlargement, renal vein enlargement, presence of perirenal collaterals, and unilaterally prolonged corticomedullary junction time. We conclude that CT scanning can serve as a valuable examination in patients with suspected renal vein thrombosis.
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The sonographic findings of renal vein thrombosis are described in a patient examined for pain in the upper right abdomen. Since sonographic findings of the kidney itself are nonspecific, as are clinical appearance, laboratory data, and excretory urography, direct sonographic visualization of thrombus within the lumen of the renal vein and the inferior vena cava is of major importance in the diagnosis of renal vein thrombosis.
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Renal vein
Lumen (anatomy)
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