Lipiduria

Lipiduria or lipuria is the presence of lipids in the urine. Lipiduria is most frequently observed in nephrotic syndrome where it is passed as lipoproteins along with other proteins.[1][2] It has also been reported as a sign following fat embolism.[3]

When lipiduria occurs, epithelial cells or macrophages contain endogenous fats. When filled with numerous fat droplets, such cells are called oval fat bodies. Oval fat bodies exhibit a "Maltese cross" configuration under polarized light microscopy.[4] The Maltese cross appearance occurs because of its liquid-crystalline structure giving it a double refraction (birefringence).

See also
  • Urostealith

References
  1. Klahr S, Tripathy K, Bolanos O (1967). "Qualitative and Quantitative Analysis of Urinary Lipids in the Nephrotic Syndrome". J. Clin. Invest. 46 (9): 1475–81. doi:10.1172/JCI105639. PMC 292893. PMID 6036540.
  2. "Significance of lipiduria". www.uptodate.com. Archived from the original on 2010-01-05.
  3. Findlay J, DeMajo W (1 January 1984). "Cerebral fat embolism" (Image & PDF). Canadian Medical Association Journal. 131 (7): 755–7. PMC 1483580. PMID 6478364.
  4. "Urinalysis". webpath.med.utah.edu.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.