A morphometric study was done on 100 human kidneys by using IADSA in potential renal donors. Any donor with a pathology was excluded and their age ranged from 15 to 80 years. The result of renal measures showed the following averages: right kidney length 118.5mm (+/- 12mm), left kidney length 122.6mm (+/- 14mm). Thickness of right kidney was 59.8mm (+/- 4mm) and left kidney was 54.8mm (+/- 3mm). Left kidney presented usually greater length and the right kidney presented with greater width.

To recognize anatomical variations it is necessary to establish the normal pattern of the human body. Both the body as a whole, and its internal organs and parts, show certain flexibility of size, form, structure and position. Such fluctuation within a commonly experienced range is considered as normal variations; nevertheless any departure beyond these limits is classified as anomalies or malformations. Variations in the renal morphometry are no exception to this universal phenomenon. Variations in the renal morphometry including their length and thickness are very common. It is not only ludicrous but also dangerous to suggest that both kidneys have the same dimensions.