Publications by authors named "Mohamed Abbar"

Background: Urothelial bladder carcinoma (UBC) is one of the most prevalent cancers in men worldwide. Human epidermal growth factor receptor 2 (HER2) expression has been detected in a wide range of urothelial carcinoma. Despite many reports in the literature, the prognostic significance of this overexpression remains unclear.

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Upper urinary tract (UUT) benign tumours are rare. We present a case of UUT lipoma in a 41-year-old man with left flank pain. A computed tomographic urography scan revealed an irregular thickening of the left renal collecting system wall extending from the upper calices to the renal pelvis.

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Introduction: We determine the role of stone density and skin-to-stone distance (SSD) by non-contrast computed tomography of the kidneys, ureters and bladder (CT-KUB) in predicting the success of extracorporeal shock wave lithotripsy (ESWL).

Methods: We evaluated 89 patients who received ESWL for renal and upper ureteric calculi measuring 5 to 20 mm, over a 12-month period. The mean stone density in Hounsfield units (HU) and mean SSD in mm was determined on pre-treatment CT-KUB at the CT workstation.

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Introduction: We evaluate the efficiency of α-adrenergic antagonists on stone clearance after extracorporeal shock wave lithotripsy (ESWL) in patients with lower ureteral stones.

Methods: A total of 356 patients with solitary lower ureteral stones who underwent single ESWL sessions were divided into 2 groups. Group 1 received our standard medical therapy, and Group 2 was treated with 0.

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Nutcracker syndrome is caused by compression of the left renal vein between the aorta and the superior mesenteric artery where it passes in the fork formed at the bifurcation of these arteries. The phenomenon results in left renal venous hypertension. The syndrome is manifested by left flank and abdominal pain, with or without unilateral haematuria.

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The nutcracker syndrome refers to compression of the left renal vein between the aorta and the superior mesenteric artery. After a review of the literature, the authors emphasize the uncommon incidence of this pathology, and the interest of imaging in the survey of this affection.

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Aim: Hydatid disease is endemic in some countries, where it constitutes a real public health problem. It can affect any, but the kidney is a relatively rare site, representing 2% to 4% of all visceral sites. Renal hydatid cyst only presents at the stage of complications.

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The authors present four cases of Buschke Loewenstein tumor. In three cases, the outcome was good despite areas of anaplasic change are seen in one of them. The outcome of the fourth patient was fatal because of multiples recurrences.

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Four cases of ureteropelvic junction syndrome associated with arterial hypertension were reported. The authors discuss the ethiopathogenic of hypertension, on the basis of these observations and a review of the literature. They conclude that union bilateral hydronephrosis can lead to hypertension and renal failure by both inappropriate production of renin and water chronic retention.

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The authors report a case of a 30-year-old patient presenting with a right testicular mass. The presumptive diagnosis was that of a malignant tumour. The definitive diagnosis, confirmed by histological examination of the orchidectomy specimen, was that of a dermoid cyst.

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