The urinary sediment beyond light microscopical examination.

The (fixed) urinary sediment, a simple and useful diagnostic tool in patients with haematuria.

Examination of the urinary sediment is a simple and indispensable tool in the diagnostic approach to patients with asymptomatic haematuria. Various glomerular and nonglomerular diseases can cause haematuria. A well-trained expert can distinguish between these two forms of haematuria by examining the urinary sediment under a simple light microscope. In glomerular haematuria, dysmorphic erythrocy...

Urinary Sediment Examination

A urinary sediment examination is an important type of non-invasive, repeatable morphological examination. It is necessary to accurately classify and measure urine components, such as epithelial cells, non-epithelial cells (blood cells), casts, salts/crystals, and microorganisms. The clinical significance of a urinary sediment examination is twofold. First, this examination is used to screen fo...

Light microscopical diagnosis of rabies

Human papovavirus in Papanicolaou smears of urinary sediment detected by transmission electron microscopy.

A technique is described whereby inclusion-bearing cells identified by light microscopy in stained smears of urinary sediment were reprocessed for examination in the electron microscope. The nuclei of the abnormal cells were found to contain numerous virus particles, 35 nm in diameter, which morphologically resembled papovaviruses. The technique was applied in this case to identify further the ...

Histological diagnosis of intestinal microsporidiosis in patients with AIDS.

Fifty nine patients seropositive for human immunodeficiency virus (HIV) and diarrhoea and 20 with weight loss were investigated for microsporidiosis using light and electron microscopical examination of duodenal and jejunal biopsy specimens. Eight cases of microsporidiosis were found, in five of whom it was the sole pathogen. In all eight cases the organism was identified at light microscopy wi...