“…In cases with obstruction of the ureter the fistula may be outlined by upper gastrointestinal barium studies (Schwartz et al, 1970;Geisse and Blath, 1976). Fistulas have been shown by Bang, 1874Turner, 1893Esau, 1911Terebinskiy, 1929Arendt and Brockman, 1934Biondi, 1935Pulvertaft, 1935Ribiero, 1939King, 1950Jones et al, 1953Bloom, 1954Glaser, 1954Barootes, 1956North et al, 1956Boggs et al, 1961Boggs et al, 1961Pumphrey, 1963 Arthur and Morris, 1966Cohen et al, 1966Hopkins and Pierce, 1966Newsam, 1966Wise and Schimada, 1967McEwan, 1968 (Cohen et al, 1966).…”