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  • Title: [Utility of diuretic renography in the detection of an enteroureteral fistula].
    Author: Martínez Gimeno E, Ramos Font C, Allende Riera A, Cárdenas Negro C, de Sequera Rahola M, Albalá González MD, Rodríguez Fernández A, Uña Gorospe JA, Antón Hernández L.
    Journal: Rev Esp Med Nucl; 2007; 26(4):221-5. PubMed ID: 17662188.
    Abstract:
    After a 2-year-old male with left impairment underwent surgery for a left vesicoureteral stenosis, his renal function was followed up by means of dynamic renal scintigraphy with 99mTc-DTPA. Incidental radiotracer accumulation was observed in left hemiabdomen tracing the descending and sigmoid colon. A vesico-colonic fistula was suspected. However, ultrasonography and cystography studies showed no presence of a vesico-enteric fistula. Because the patient persisted without symptoms, an expectant approach was adopted. One year later, he began to suffer watery diarrhoea episodes. 99mTc-DTPA renography was again performed to re-evaluated renal function and explore presence of urinary-enteric fistula. Diuretic renography demonstrated the presence of a vesical leak to sigmoid gut, which was confirmed by recovery of fecal matter from the patient. Both isotopic renograms evidenced the presence of uretero-sigmoid fistula, an uncommon postsurgical that was not detected by cystography, ultrasonography or RMN. The patient subsequently underwent surgery for fistula repair.
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