Visibility of the renal fascia at intravenous urography.

Contrary to the accepted understanding that visibility of the perirenal fascia at urography is a rare finding and when seen is usually associated with renal pathology, a recent report has suggested that it is a fairly common, normal finding. In a retrospective study, 261 unselected intravenous urograms performed over a 3-month period were analysed. The findings indicate a low incidence of perirenal fascia visualisation and, when present, an association with renal pathology.