The value of computerized tomography as a routine follow‐up procedure for patients with Wilms' tumor

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Abstract
We performed routine computerized tomography (CT) of the chest and abdomen on patients treated for Wilms' tumor and reviewed the records of all patients who relapsed (10 patients) and 43 additional patients followed for at least 1 year. Routine chest radiographs and abdominal ultrasounds were compared with 210 CT examinations (107 chest and 103 abdomen). CT examinations were obtained at 6 months for stage I (13 patients) and at 3, 8, and 15 months for stages II, III, and IV (40 patients). Of the 10 patients who relapsed, only 2 were documented by CT scan in the absence of clinical symptomatology and presence of normal radiographs and ultrasound. Eight relapses were diagnosed by physical examination, chest radiograph, or ultrasound and confirmed by CT scan. Questionably abnormal CT scans were obtained in 7 patients, only 1 of whom eventually relapsed. Since only 2 of 210 routine CT examinations were the the only indicator of relapse, we conclude that the routine use of CT for follow‐up in Wilms' tumor is not warranted.