Bacteria In Renal Casts

Bacterium-like structures were seen in renal casts in the urine from eight patients with pyelonephritis and from two with glomerulonephritis. Although these structures were morphologically identical with bacteria, an attempt to demonstrate their nature with fluorescent antisera was unsuccessful.

Most of this work was performed in the Radcliffe Infirmary, Oxford, and I am grateful to the clinical staff there for access to their patients and case records.