False-positive results of a gastrointestinal bleeding study caused by an ectopic kidney

被引:9
作者
Infante, JR [1 ]
González, FM [1 ]
Vallejo, JA [1 ]
Torres, M [1 ]
Pacheco, C [1 ]
Latre, JM [1 ]
机构
[1] Reina Sofia Hosp, Dept Nucl Med, Cordoba, Spain
关键词
ectopic kidney; false-positive results; gastrointestinal bleeding; Tc-99m red blood cells;
D O I
10.1097/00003072-200008000-00024
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
A 64-year-old woman with a history of repeated bleeding episodes in the previous 4 years had several days of lower gastrointestinal bleeding and a low hematocrit concentration. Despite intensive searching (colonoscopy, arteriography, and upper gastrointestinal tract endoscopy), the site of the bleeding was not identified, and Tc-99m-labeled RBC scintigraphy was performed. Immediately after injection of the radiopharmaceutical, significant activity was visualized in the upper abdomen. Subsequent Tc-99m MAG3 renal scintigraphy showed that the activity was secondary to an ectopic right kidney, which was confirmed by ultrasound.
引用
收藏
页码:645 / 646
页数:2
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