title: 99mTc-Nannocolloid Localization of Lymphorenal Fistula Causing Chyluria.
abstract: Chyluria is an abnormal condition in which chyle appears in the urine because of a fistulous communication between the lymphatics and the urinary tract. It is not life-threatening and spontaneous regression is reported in 50% of cases. Lymphangiography has been the main imaging modality for localization of the site of fistula, but it is invasive and requires expertise. Lymphoscintigraphy using Tc-99m labelled colloid is a safe, non-invasive, reproducible technique, which bears less radiation exposure. A 67-year-old male presented with 7-month history of chyluria following a spinal surgery. Bilateral lower limb lymphoscintigram revealed sluggish lymph flow in the left lower limb and visualization of tracer in the left kidney consistent with lymphorenal fistula. Subsequent cystography revealed appearance of chylous urine from left ureter. Patient refused surgery.
authors.affiliation: Department of Radiology, The Aga Khan University Hospital, Karachi, Pakistan. maseeh.uzzaman@aku.edu
authors.forename: Maseeh Uz
authors.initials: MU
authors.lastname: Zaman
authors.forename: Riffat Parveen
authors.initials: RP
authors.lastname: Hussain
authors.forename: Khalil Ahmed
authors.initials: KA
authors.lastname: Khan
authors.forename: Gufran
authors.initials: G
authors.lastname: Khan
authors.forename: M Nadeem
authors.initials: MN
authors.lastname: Ahmad
mesh_terms: D000368:Aged; D002913:Chyle; D006801:Humans; D008208:Lymphatic System / Q000473:pathology; D008220:Lymphography; D008297:Male; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D013667:Technetium; D014548:Urinary Fistula / Q000150:complications / Q000175:diagnosis / Q000000981:diagnostic imaging*; D014556:Urine; D014570:Urologic Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000209:etiology
chemical_list: D019275:Radiopharmaceuticals; D013667:Technetium