title: Renal malignancies with normal excretory urograms.
abstract: Four patients with malignant renal masses showed no abnormality on excretory urograms with tomography. Of the four lesions, two were primary renal cell carcinomas, one was a metastatic focus from a contralateral renal cell carcinoma, and one was a metastatic lesion from rectal adenocarcinoma. A normal excretory urogram should not be considered sufficient to exclude a clinically suspected malignant renal mass. In such an instance, diagnostic evaluation should be pursued using a method capable of topographic anatomic display, such as computed tomography or sonography.
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging / Q000556:secondary; D000368:Aged; D005260:Female; D006801:Humans; D007668:Kidney / Q000000981:diagnostic imaging*; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography