Pyelocancerous backflow during retrograde pyelography is a roentgen sign indicating renal tumors. An example of a pseudotumor (renal hematoma caused by anticoagulation) is presented which displayed this type of backlfow, demonstrating the nonspecificity of the sign. The diagnostic, especially radiographic, findings of intrarenal hematoma are discussed.
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http://dx.doi.org/10.1016/0090-4295(77)90048-6 | DOI Listing |
Hematology Am Soc Hematol Educ Program
December 2024
Division of Hematology, University of British Columbia, Vancouver, British Columbia, Canada; and Division of Hematology, Dalhousie University, Halifax, Nova Scotia, Canada.
Immunoglobulin G4-related disease (IgG4-RD) is an immune-mediated disease with many important manifestations in hematopoietic and lymphoid tissue. IgG4 is the least naturally abundant IgG subclass, and the hallmark feature of IgG4-RD is markedly increased IgG4-positive plasma cells (with an IgG4 to IgG ratio >40%) in affected tissue, along with elevated polyclonal serum IgG and IgG4 in most patients. Histological diagnosis is essential, and other key features include storiform fibrosis, lymphoplasmacytic infiltrate, tissue eosinophilia, and obliterative phlebitis.
View Article and Find Full Text PDFCureus
September 2024
Pathology and Laboratory Medicine, Sri Ramaswamy Memorial (SRM) Medical College Hospital and Research Centre, Chennai, IND.
Xanthogranulomatous pyelonephritis (XGPN) is a chronic granulomatous inflammatory condition that affects the kidney and can often be hard to diagnose preoperatively due to its varying clinical presentations. We present here a rare case of a 36-year-old man with focal XGPN with preoperative CT imaging showing a large heterogenous lesion (computer tomography Hounsfield unit (CT HU) + 20) of size ~ 8.6 x 8.
View Article and Find Full Text PDFInt J Mol Sci
July 2024
Department of Nephrology and Dialysis, Brugmann University Hospital, Université libre de Bruxelles, 1020 Bruxelles, Belgium.
J Clin Med
June 2024
Department of Interventional Radiology and Neuroradiology, Medical University of Lublin, 20-090 Lublin, Poland.
Abdom Radiol (NY)
November 2024
Department of Radiology, University of Washington, Seattle, Washington, 98195, USA.
Contrast-enhanced ultrasound (CEUS) is an advanced ultrasound (US) technique utilizing ultrasound contrast agents (UCAs) to provide detailed visualization of anatomic and vascular architecture, including the depiction of microcirculation. CEUS has been well-established in echocardiography and imaging of focal hepatic lesions and recent studies have also shown the utility of CEUS in non-hepatic applications like the urinary system. The updated guidelines by the European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) from 2018 describe the use of CEUS for non-hepatic applications.
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