Abstract
Variety Range (difference between the maximum and minimum transverse diameters in percentage of the minimum diameter) was calculated for 86 lumbar lymph nodes with maximum diameter ranging between 5 mm and 19 mm at CT. The nodes were located within a group (pre-and paracaval, interaortico-caval, pre-and paraaortic) which was removed during primary lymphadenectomy for non-seminomatous testicular tumor. Most nodes were fairly rounded with a Variety Range less than 20%. There was no difference between the largest node in a metastasis group (Variety Range less than 20% in 29 out of 36) and tumor free nodes (Variety Range less than 20? in 39 out of 50). A rounded shape of lymph nodes measuring less than 20 mm on transverse CT sections was not a reliable sign of metastasis in patients with non-seminomatous testicular tumor.
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