Abstract
A 76-year-old man had a radical operation for esophageal carcinoma in July 1988. One year and five months later abdominal ultrasonography which was performed as a follow-up screening examination for his study revealed a tumor in the lower part of the right kidney. Radical right nephrectomy was performed successfully in December 1989. Pathological diagnosis of the esophageal cancer and the renal cell tumor was squamous cell carcinoma and clear cell renal carcinoma respectively. Ultrasonography is a noninvasive and useful tool as a follow-up examination for a cancer patient, and also contributes to improving the results of surgery and the patient's quality of life.
