Thromboembolic obstruction of major renal arteries is a rare but serious clinical problem. A diagnosis is not usually established until irreversible renal parenchymal damage occurs. Emboli to the major renal arteries are associated with cardiac diseases and arrhythmia, among which atrial fibrillation is a major cause. The clinical manifestations of renal artery thromboembolism vary substantiall...

BACKGROUND Acute renal infarction is an uncommon condition resulting from an obstruction or a decrease in renal arterial blood flow. Isolated spontaneous renal artery intramural hematoma is a rare cause of renal infarction. CASE REPORT A 46-year-old healthy man presented to our emergency room because of sudden onset of severe right flank pain. An enhanced abdominal computed tomography scan sh...

Umbilical artery catheters have been associated with thrombotic complications, such as partial or complete occlusion in the aorta, the renal arteries, and other blood vessels. There have been few reports of the long-term consequences of either symptomatic or asymptomatic thrombi. We report a patient, now 22 years of age, born with a normal aorta, who developed hypertension at the age of 2 month...

We report a case of bilateral ureteral obstruction most likely caused by polyarteritis nodosa. The diagnosis was based upon muscle biopsy which showed typical necrotizing vasculitis in medium size artery in conjunction with microaneurysms in renal angiography. Ureteral obstruction is a rare manifestation of polyarteritis nodosa. This condition is thought to result from vasculitis of periuretera...

It has been known for more than 60 years that urinary obstruction increases the susceptibility of the kidney to infection. In the past, it was thought that obstruction provided a pool of stagnant culture medium in which infection was initiated. Many reasons for discarding this hypothesis have been presented elsewhere.' On the other hand, there is considerable evidence that urinary obstruction l...

the purpose of this study was to gain more information on the structure of different layers of renal arteryand comparing these structures in post-natal male and female sheep. to do so, right and left renal arteries of6 adult and 6 newborn animals were dissected; the middle parts of arteries were only collected. after tissueprocessing using paraffin embedding method, 5–6-μm sections were cut and...

BACKGROUND Metastatic pulmonary calcification, a complication of uraemia and disordered calcium metabolism, may be diffuse or localised. The factors that determine calcium precipitation are complex, but tissue alkalosis is thought to be important. As obstruction of the pulmonary artery theoretically causes local alkalosis a retrospective necropsy study was carried out to examine the relation be...

vascular variations and the accidental cutting of veins and arteries potentially create problems during surgery and medical treatment. the surgeon's awareness of a vascular variation in the kidneys is essential during renal surgery and transplantation, color doppler imaging, gonadal surgery and in the presence of an abdominal aortic aneurism. this awareness can improve the patient's r...