MSCT diagnosis of primary ureteral carcinoma and non-specific ureteritis / 实用放射学杂志

Objective To discuss the MSCT diagnosis and differential diagnosis of primary ureteral carcinoma and non-specific u-reteritis.Methods The pre-contrast and three-phase post-contrast MSCT scans were performed in a group of 12 patients with prima-ry ureteral carcinoma and 5 patients with non-specific ureteritis confirmed by pathology.The MPR,CPR,CTU images were genera-ted from raw data.The MSCT image feature of the primary ureteral carcinoma and non-specific ureteritis were observed respective-ly.Results ①1 2 cases of primary ureteral carcinoma pathologically diagnosed as transitional cell carcinoma,The manifestations of MSCT:9 cases (9/12)showed irregular thickened wall and eccentricity lumen stenosis,5 cases had soft tissue mass in lumen,3 ca-ses (3/12)showed irregular thickened wall and central lumen stenosis.The lesions lumen was significant stenosis,edges and broken ends were irregular.②The non-specific ureteritis manifestations of MSCT:1 case (1/5)showed irregular thickened wall and eccen-trical lumen stenosis;3 cases (3/5)showed irregular thickened wall and central lumen stenosis,and the edge of obstruction was rel-atively smooth.1 case (1/5)prompted hydronephrosis and hydroureter.The lesions lumen was still relatively smooth,had no sig-nificant thickening.③On non-enhanced CT,primary ureteral carcinoma attenuation was equal to the non-specific ureteritis (P>0.05).The degree of enhancement was higher than non-specific ureteritis during all enhanced phases (All P<0.05).Conclusion Main performance characteristics of primary ureteral carcinoma and non-specific ureteritis can both cause the ureteral wall thickening in different appearances and degrees.The MSCT enhanced scan with varies images processing techniques such as MPR,CPR and CTU showed some clinical application potentiality in both diseases diagnosis and discrimination.

A Case of Emphysematous Pyelonephritis Associated with Emphysematous Ureteritis and Cystitis

Emphysematous pyelonephritis (EPN) is a necrotizing infection of the renal parenchyma and its surrounding tissues that results in the accumulation of gas in the renal parenchyma, collecting system or perinephric tissue. EPN is a potentially life-threatening condition, which is most commonly associated with poorly controlled diabetes. We describe a case of emphysematous pyelonephritis associated with emphysematous ureteritis and cystitis in a 68-year-old diabetic woman, who was cured with medical treatment and surgical intervention.

Emphysematous Pyelonephritis, Ureteritis, and Cystitis which Occur Simultaneously in a Diabetic Neurogenic Bladder Patient / 대한신장학회잡지

Since the first case was known by Kelly and MacCallum in 1898, gas-forming bacterial infection of the urinary tract has been reported infrequently. This disease occurs more frequently in diabetics or women, and is mainly caused by aerobic Gram negative bacteria, most commonly E. coli. Although the pathogenesis of gas formation in this disease is still poorly understood, glucose fermentation by the causative bacteria has been considered as the main mechanism. In the literature, the majority of cases reported were emphysematous pyelonephritis and/or emphysematous cystitis, together or separately. But simultaneous development of emphysematous infection of kidney, ureter and bladder has been reported very rarely and no case has been reported yet in Korea. We report a case of emphysematous pyelonephritis, ureteritis, and cystitis which occurred simultaneously in 35-year-old female patient with diabetic renal failure and neurogenic bladder.

A Case of Ureteritis Cystica / 대한비뇨기과학회지

Ureteritis cystica is one of the cystic diseases formed in the mucosa or submucosa of the renal pelvic, ureter and bladder by chronic inflammation or irritation. A rare case of ureteritis cystica confirmed by ureteroscopy is presented with review of the literatures.

A Case of Pyelitis and Ureteritis Cystica / 대한비뇨기과학회지

Pyelitis and ureteritis cystica which is characterized by cyst formations mucosa or submucosa of the ureter and renal pelvis caused by inflammation. We are reporting a case of ureteritis cystica with review of the literatures.