99mTc-Nannocolloid Localization of Lymphorenal Fistula Causing Chyluria.
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.
Zaman
Maseeh Uz
MU
Department of Radiology, The Aga Khan University Hospital, Karachi, Pakistan. maseeh.uzzaman@aku.edu
Hussain
Riffat Parveen
RP
Khan
Khalil Ahmed
KA
Khan
Gufran
G
Ahmad
M Nadeem
MN
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
D019275:Radiopharmaceuticals; D013667:Technetium