ABSTRACT
Objective Toinvestigatetheincidenceofchronicrenalobstructiveexternalappendageinvolvementandtheresultsof MSCTdetection.Methods MSCTdataof120patientswithchronicurinarytractobstructionwereretrospectivelyanalyzed.Results Among120patients,75caseswerefoundwiththeextrarenalappendageinjury(62.5%).Theinjuryoftheextrarenalappendageincluded thickeningofrenalcapsule(8.00%),effusionofrenalsubcapsular(14.67%),thickeningofbridgingseptaoftheperinephricspace (100.00%),lamellarshadowoffatlayerintheperirenalspace(36.00%),thickeningofrenalfascia(96.00%),pararenalspaceeffusion (88.00%),thickeningperitoneal(76.00%),pseudocyst(1.33%),lamellarshadowoffatlayerinextraperitoneal(22.67%)andnapes(6.67%), increasedintraperitonealfatdensity(32.00%)andperitonealeffusion(4.00%).Conclusion MSCTcanclearlydemonstrateextentand rangeoftheperinephricspaceandpararenalspaceinvolvementinchronicurinarytractobstruction.CTscanplayanimportantrolein chronicurinarytractobstruction.
ABSTRACT
Objective To analyze the reasons and imaging features of acute urinary tract obstruction and perinephritis and to evaluate the diagnostic efficacy of CT and MR in this kind of patients.Methods Imaging features of 72 patients with acute urinary tract obstruction were analyzed.The advantages of CT and MR were evaluated in diagnosis of the diseases.Results In all 70 patients (72 sites)with ureteral calculus,the accurate rates of diagnosis were 100% on CT and 59.7% on MR.In the 72 patients with perinephritis,the detection rate of effusion in perinephric soft tissue on MR was better than that on CT.Conclusion CT or MR has individually diagnostic advantage in acute urinary tract obstruction and perinephritis,CT is better in ureteral calculus and MR in perinephritis.
ABSTRACT
Renal and perirenal abscesses are disease entities caused by infections in or around the kidneys. As imaging modalities have improved in quality and convenience, diagnosing these diseases has become easier. Some cases are refractory to conventional treatment and require surgical correction, although most patients can be cured by antibiotic treatment and percutaneous drainage. We here report the case of a patient with a perirenal abscess that recurred twice after appropriate antibiotic treatment and percutaneous drainage. Although Gram-negative bacilli are the most common pathogenic cause of these diseases, we isolated methicillin-resistant Staphylococcus aureus and Mycobacterium tuberculosis in our patient. Thus, poor responses to appropriate treatment in patients with a perirenal abscess can result not only from antimicrobial resistance or a co-infection but also from the 2 conditions existing concomitantly.