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Tran Quoc Hoa,1 Nguyen Ngoc Cuong,2 Nguyen Cong Hoan,3 Nguyen Quang Trung,2 Thieu Thi Tra My,4 Nguyen Ngoc Anh,5 Hoang Long1 1Surgery Urology, Hanoi Medical University Hospital, Hanoi Medical University, Hanoi, Vietnam; 2Radiology Center Hanoi Medical University Hospital, Hanoi Medical University, Hanoi, Vietnam; 3Outpatient department, Hanoi medical university hospital, Hanoi medical university, Hanoi, Vietnam; 4Radiology Department, Vinmec Times city Interational Hospital, Hanoi, Vietnam; 5Anatomy Department, Hanoi Medical University, Hanoi, VietnamCorrespondence: Nguyen Ngoc Cuong, Radiology center, Hanoi medical university hospital, No. 1, Ton That Tung Street, Dong Da District, Hanoi, Viet Nam, Tel +84965131314, Email cuongcdha@gmail.comPurpose: Chyluria is a rare condition primarily prevalent in developing countries in tropical regions. In chyluria, there exists the communication between lymphatic vessels and the urinary tract, but the specific mechanism of this communication remains undocumented. The objective of this study was to assess the morphology of the main lymphatic vessels including the uro-lymphatic fistula, the thoracic duct using Magnetic Resonance Lymphangiography (MRL) and Intranodal Lymphangiography (IL).Materials and Methods: A retrospective study spanning five years, from January 2020 to January 2024, included 43 patients diagnosed with chyluria through cystoscopy and quantitative urine testing for triglycerides. These patients underwent MRL and then IL for uro-lymphatic fistula embolization.Results: The study involved 43 patients with an average age of 66.1 ± 19.5 years, with a male-to-female ratio of 1:2. Uro-lymphatic fistula occurred predominantly in the left kidney (72.1%), followed by the right kidney (20.9%), and both sides (7%). MRL imaging showed the thoracic duct in 100% of cases but visualized only 84.5% of the uro-lymphatic fistulas. In contrast, IL imaging showed the thoracic duct in 51.5% of patients but visualized uro-lymphatic fistulas in 100% of cases. In the procedure of ... |