Dysmorphic erythrocytes

1996 ◽  
Vol 11 (9) ◽  
pp. 1874-1875 ◽  
Author(s):  
E. Wandel
1987 ◽  
Vol 33 (10) ◽  
pp. 1791-1795 ◽  
Author(s):  
T J Pillsworth ◽  
V M Haver ◽  
C K Abrass ◽  
C J Delaney

Abstract Recent studies indicate that hematuria of renal parenchymal origin can be differentiated from hematuria of other origin by the presence of dysmorphic urinary erythrocytes (cells exhibiting irregular membranes or small surface blebs). We investigated the utility of this simple screening assay in a routine clinical laboratory. Dysmorphic erythrocytes in urine from 69 patients (18 with renal-parenchymal disease) were quantified on unstained slides by medical technologists using phase-contrast microscopes. Samples stored at 4 degrees C or 23 degrees C for up to 5 h had no significant changes in percentages of dysmorphic erythrocytes (PDE). PDE was also not modified by urea nitrogen concentration, osmolality, or pH over the physiological ranges of these variables. Receiver-operating characteristic (ROC) curves indicated an optimal sensitivity of 88% and specifity of 94% at a decision level of 14% dysmorphic erythrocytes per high-power field. Thus, the presence of fewer than 14% dysmorphic cells is suggestive of extra-renal disease; more than 14% is suggestive of intra-renal disease.


2003 ◽  
Vol 49 (4) ◽  
pp. 617-623 ◽  
Author(s):  
Cornelia Ottiger ◽  
Andreas R Huber

Abstract Background: Automated systems have enabled the counting of particles in urine to be standardized. Their superiority over traditional sediment analysis has been well documented, but they have not gained wide acceptance. The reasons for this are that sediment analysis has been performed and interpreted for decades. Additionally, pathologic casts and other unknown particles still must be confirmed under the microscope. Furthermore, comparison between the methods has revealed outliers and thus decreased confidence in automation. Methods: We used the standardized KOVA cell chamber system to count particles and compared the results with UF-100 flow cytometry as an alternative to traditional sediment analysis. Results: We compared 252 randomly selected urine samples and obtained a review rate of 33%. Microscopic verification was necessary because of the presence of casts, yeast, sperm, dysmorphic erythrocytes, and some misclassified erythrocytes or leukocytes that were detected by incongruent dipstick results and abnormal scattergrams. We obtained correlation coefficients of 0.966 for erythrocytes and 0.935 for leukocytes. Criteria for an algorithm to identify samples that needed microscopic review were derived from comparisons between the number of particles from UF-100, dipstick results, cell chamber counting, and sediment analysis. Conclusions: Automated cell counting combined with microscopic counting with a standardized cell chamber system is useful. An objective algorithm for review criteria can be developed via systematic comparison of UF-100 flow cytometry and microscopy. Only urine samples that meet these criteria need to be confirmed microscopically.


2015 ◽  
Vol 7 (1) ◽  
pp. 115-120 ◽  
Author(s):  
Zhe‐yi Dong ◽  
Yuan‐da Wang ◽  
Qiang Qiu ◽  
Kai Hou ◽  
Li Zhang ◽  
...  

2011 ◽  
Vol 139 (5-6) ◽  
pp. 386-389 ◽  
Author(s):  
Nedeljko Radlovic ◽  
Dragana Ristic ◽  
Radivoj Brdar ◽  
Nenad Janic ◽  
Zoran Lekovic ◽  
...  

Introduction. Biliary calculosis is rare in children. It occurs associated with different haemolytic and non-haemolytic disorders, which are sometimes also combined. Case Outline. A 15-year-old male was hospitalized due to biliary calculosis and non-conjugated hyper-bilirubinemia. A mild non-conjugated hyperbilirubinemia, without anaemia and other symptoms of liver dysfunction, was registered at age 8 years, and 7 years later cholelithiasis with transitory choledocholithiasis. The finding of ellyptocytes in blood smear, which was also verified in mother, normal haemoglobin count and the absence of diseases followed by secondary dysmorphic erythrocytes of this type, indicated a clinically milder (compensated) hereditary ellyptocytosis, while more than a double increase of non-conjugated serum bilirubin fracture after a three-day hypocaloric diet (400 kcal per day) showed the concurrent presence of Gilbert?s syndrome. In the laparascopically removed gallbladder a larger number of small pigmented calculi were disclosed. Conclusion. Gilbert?s syndrome is an essential precipitating factor of biliary calculosis in patients with chronic haemolytic condition. Thus, in all cases of biliary calculosis and non-conjugated hyperbilirubinemia with absent clinical and laboratory parameters of liver disorders and anaemia, except in compensated haemolytic disease and Gilbert?s syndrome as isolated disorders, a possibility of their association should be taken into consideration.


2010 ◽  
Vol 115 (3) ◽  
pp. c203-c212 ◽  
Author(s):  
Meindert J. Crop ◽  
Yolanda B. de Rijke ◽  
Paul C.M.S. Verhagen ◽  
Karlien Cransberg ◽  
Robert Zietse

1991 ◽  
Vol 146 (3) ◽  
pp. 680-684 ◽  
Author(s):  
Stephan Roth ◽  
Eckhard Renner ◽  
Peter Rathert

1996 ◽  
Vol 11 (9) ◽  
pp. 1874-1875 ◽  
Author(s):  
E. Wandel

1986 ◽  
Vol 86 (6) ◽  
pp. 784-787 ◽  
Author(s):  
Sanford M. Thal ◽  
Christine C. Debellis ◽  
Sarah A. Iverson ◽  
G. Berry Schumann

Author(s):  
Yosepha Dwiyana ◽  
Dalima AW Astrawinata

In glomerulonephritis there are intraglomerular inflammation, cell proliferation, and hematuria. Hematuria is characterized by more than 3 (three) erythrocytes per high-power field in the urine, which indicates the pathological processes in kidney or urinary tract. The combination of mechanical damage of erythrocyte membrane through the damaged glomerular basement membrane followed by the osmotic damage when it passes through the tubular system in the hypotonic osmotic solutions causes dysmorphic morphology. Erythrocytes trapped in the Tamm-Horsfall protein will form erythrocyte casts. Dysmorphic erythrocytes and or erythrocyte casts in the urine indicate glomerular hematuria. Various forms of dysmorphic erythrocytes in the urine can be found. Acanthocytes (G1-cells) are specific for glomerular hematury. The examination of these urinary sediments can be done natively or by using automated urinalysis analyzers.


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