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Congenital extrahepatic portoazygos shunt in combination with hepatic microvascular dysplasia in a Yorkshire Terrier

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Abstract
A five-year-old, female castrated Yorkshire Terrier was presented with complaints of decreased activity and appetite, fever, a painful abdomen and lower urinary tract symptoms. Based on blood and urinalysis there was a strong suspicion of liver disease and a urinary tract infection. Abdominal ultrasound revealed a portoazygos shunt, bilateral nephrolithiasis and pyelectasia raising the suspicion of pyelonephritis. However, pyelonephritis could not be confirmed because urine culture - while the dog received antibiotics - was negative. A shunt fraction of 99% was confirmed on scintigraphy. After medical stabilization, the shunt was surgically attenuated using a cellophane band. Postoperatively, conservative treatment was continued and the dog became clinically asymptomatic, although serum pre- and postprandial bile acid concentrations remained elevated. Six months after the surgical intervention, a persistent or acquired shunt was excluded by subsequent scintigraphy (shunt fraction 0.88%). Surgical liver biopsies were taken and routine histopathology revealed hepatic microvascular dysplasia.
Keywords
CAIRN TERRIERS, PORTAL SCINTIGRAPHY, DOGS, DIAGNOSIS, ANGIOGRAPHY, VEIN, histology, PORTOSYSTEMIC SHUNTS, imaging, hepatic microvascular dysplasia, portoazygos shunt, Dogs

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Citation

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MLA
Devriendt, Nausikaa et al. “Congenital Extrahepatic Portoazygos Shunt in Combination with Hepatic Microvascular Dysplasia in a Yorkshire Terrier.” WIENER TIERARZTLICHE MONATSSCHRIFT 101.3-4 (2014): 58–65. Print.
APA
Devriendt, N., Paepe, D., Vandermeulen, E., Rybachuk, G., de Cock, H., Saunders, J., Bosmans, T., et al. (2014). Congenital extrahepatic portoazygos shunt in combination with hepatic microvascular dysplasia in a Yorkshire Terrier. WIENER TIERARZTLICHE MONATSSCHRIFT, 101(3-4), 58–65.
Chicago author-date
Devriendt, Nausikaa, Dominique Paepe, Eva Vandermeulen, Galyna Rybachuk, HEV de Cock, Jimmy Saunders, Tim Bosmans, Geert Paes, and Hilde De Rooster. 2014. “Congenital Extrahepatic Portoazygos Shunt in Combination with Hepatic Microvascular Dysplasia in a Yorkshire Terrier.” Wiener Tierarztliche Monatsschrift 101 (3-4): 58–65.
Chicago author-date (all authors)
Devriendt, Nausikaa, Dominique Paepe, Eva Vandermeulen, Galyna Rybachuk, HEV de Cock, Jimmy Saunders, Tim Bosmans, Geert Paes, and Hilde De Rooster. 2014. “Congenital Extrahepatic Portoazygos Shunt in Combination with Hepatic Microvascular Dysplasia in a Yorkshire Terrier.” Wiener Tierarztliche Monatsschrift 101 (3-4): 58–65.
Vancouver
1.
Devriendt N, Paepe D, Vandermeulen E, Rybachuk G, de Cock H, Saunders J, et al. Congenital extrahepatic portoazygos shunt in combination with hepatic microvascular dysplasia in a Yorkshire Terrier. WIENER TIERARZTLICHE MONATSSCHRIFT. 2014;101(3-4):58–65.
IEEE
[1]
N. Devriendt et al., “Congenital extrahepatic portoazygos shunt in combination with hepatic microvascular dysplasia in a Yorkshire Terrier,” WIENER TIERARZTLICHE MONATSSCHRIFT, vol. 101, no. 3–4, pp. 58–65, 2014.
@article{5984476,
  abstract     = {A five-year-old, female castrated Yorkshire Terrier was presented with complaints of decreased activity and appetite, fever, a painful abdomen and lower urinary tract symptoms. Based on blood and urinalysis there was a strong suspicion of liver disease and a urinary tract infection. Abdominal ultrasound revealed a portoazygos shunt, bilateral nephrolithiasis and pyelectasia raising the suspicion of pyelonephritis. However, pyelonephritis could not be confirmed because urine culture - while the dog received antibiotics - was negative. A shunt fraction of 99% was confirmed on scintigraphy. After medical stabilization, the shunt was surgically attenuated using a cellophane band. Postoperatively, conservative treatment was continued and the dog became clinically asymptomatic, although serum pre- and postprandial bile acid concentrations remained elevated. Six months after the surgical intervention, a persistent or acquired shunt was excluded by subsequent scintigraphy (shunt fraction 0.88%). Surgical liver biopsies were taken and routine histopathology revealed hepatic microvascular dysplasia.},
  author       = {Devriendt, Nausikaa and Paepe, Dominique and Vandermeulen, Eva and Rybachuk, Galyna and de Cock, HEV and Saunders, Jimmy and Bosmans, Tim and Paes, Geert and De Rooster, Hilde},
  issn         = {0043-535X},
  journal      = {WIENER TIERARZTLICHE MONATSSCHRIFT},
  keywords     = {CAIRN TERRIERS,PORTAL SCINTIGRAPHY,DOGS,DIAGNOSIS,ANGIOGRAPHY,VEIN,histology,PORTOSYSTEMIC SHUNTS,imaging,hepatic microvascular dysplasia,portoazygos shunt,Dogs},
  language     = {eng},
  number       = {3-4},
  pages        = {58--65},
  title        = {Congenital extrahepatic portoazygos shunt in combination with hepatic microvascular dysplasia in a Yorkshire Terrier},
  volume       = {101},
  year         = {2014},
}

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