Intraglomerular embolization by tubular cells.

Intraglomerular embolization by tubular epithelial cell is a rare artefact found in needle biopsy specimens. The authors have observed this phenomenon in five out of 300 renal biopsy cases. Tubular epithelial cells, were present in the glomerular capillaries (in two cases) or in the capillaries and within the glomerular urinary space (in three cases).