[Anomalies of ureteral orifices simulating diseases of the abdominal organs]

The ectopy of the ureter orifices and ureterocele are always followed by either mechanical or dynamic obstruction of the ureter and obstructive pyelonephritis. These anomalies are periodically accompanied by abdominal pains which make their appearance during an attack of acute pyelonephritis. These abdominal pains can be erroneously taken for symptoms of appendicitis or intestinal obstruction and the patients are subjected to appendectomy or laparotomy by mistake. The erroneous appendectomy or laparotomy were fulfilled in 47 of 201 patients with ectopy of ureter orifices and ectopic ureterocele which were observed by the authors. The differentiation of genesis of abdominal pains may be more exact with the help of chromocystoscopy, excretory urography and isotopic renography.