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Case Report 


Portal vein hypoplasia in a Dalmatian dog

Letícia Lopes Carrijo, Vitor Eduardo Arantes De Barros, Giulia De Castro Silva, Mariana Moreira Lopes, Alexandra Moura Fraga, Luísa Pinheiro Moreira, Iago Martins Oliveira, Marco Augusto Machado Silva, Aline Maria Vasconcelos Lima, Veridiana Maria Brianezi Dignani De Moura.


Abstract
Background:
Portal vein hypoplasia (PVH) is a congenital vascular anomaly described in dogs, characterized by abnormally small intrahepatic or extrahepatic portal veins, resulting in hepatic hypoperfusion and potential development of portal hypertension (PH), which may progress to the formation of portosystemic shunts.

Case Description:
A three-year-old female Dalmatian dog was presented with ascites and anemia with a seven-month history. Diagnostic investigation included laboratory tests and contrast-enhanced computed tomography, which revealed chronic hepatopathy associated with multiple acquired extrahepatic portosystemic shunts, consistent with portal hypertension. Histopathological evaluation of liver biopsy samples confirmed portal vein hypoplasia as the underlying cause of intrahepatic portal hypertension. Clinical management consisted of a hepatic diet, hepatoprotective agents, and treatment of associated complications, resulting in significant clinical improvement.

Conclusion:
Portal vein hypoplasia should be considered among the main differential diagnoses in young dogs presenting with portal hypertension, particularly when vascular manifestations such as ascites, congestion, and portosystemic shunts are observed. Definitive diagnosis requires correlation between clinical, imaging, and histopathological findings, and appropriate medical management may lead to effective control of clinical signs.

Key words: Canine; Chronic hepatopathy; Hepatic vascular anomalies; Portosystemic shunt.


 
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How to Cite this Article
Pubmed Style

Carrijo LL, Barros VEAD, Silva GDC, Lopes MM, Fraga AM, Moreira LP, Oliveira IM, Silva MAM, Lima AMV, . Portal vein hypoplasia in a Dalmatian dog. doi:10.5455/OVJ.2026.v16.i7.16

Web Style

Carrijo LL, Barros VEAD, Silva GDC, Lopes MM, Fraga AM, Moreira LP, Oliveira IM, Silva MAM, Lima AMV, . Portal vein hypoplasia in a Dalmatian dog. https://www.openveterinaryjournal.com/?mno=318774 [Access: June 30, 2026]. doi:10.5455/OVJ.2026.v16.i7.16

AMA (American Medical Association) Style

Carrijo LL, Barros VEAD, Silva GDC, Lopes MM, Fraga AM, Moreira LP, Oliveira IM, Silva MAM, Lima AMV, . Portal vein hypoplasia in a Dalmatian dog. doi:10.5455/OVJ.2026.v16.i7.16


Vancouver/ICMJE Style

Carrijo LL, Barros VEAD, Silva GDC, Lopes MM, Fraga AM, Moreira LP, Oliveira IM, Silva MAM, Lima AMV, . Portal vein hypoplasia in a Dalmatian dog. doi:10.5455/OVJ.2026.v16.i7.16


Harvard Style

Carrijo, L. L., Barros, . V. E. A. D., Silva, . G. D. C., Lopes, . M. M., Fraga, . A. M., Moreira, . L. P., Oliveira, . I. M., Silva, . M. A. M., Lima, . A. M. V. & (2026) Portal vein hypoplasia in a Dalmatian dog. doi:10.5455/OVJ.2026.v16.i7.16


Turabian Style

Carrijo, Letícia Lopes, Vitor Eduardo Arantes De Barros, Giulia De Castro Silva, Mariana Moreira Lopes, Alexandra Moura Fraga, Luísa Pinheiro Moreira, Iago Martins Oliveira, Marco Augusto Machado Silva, Aline Maria Vasconcelos Lima, and Veridiana Maria Brianezi Dignani De Moura. 2026. Portal vein hypoplasia in a Dalmatian dog. doi:10.5455/OVJ.2026.v16.i7.16


Chicago Style

Carrijo, Letícia Lopes, Vitor Eduardo Arantes De Barros, Giulia De Castro Silva, Mariana Moreira Lopes, Alexandra Moura Fraga, Luísa Pinheiro Moreira, Iago Martins Oliveira, Marco Augusto Machado Silva, Aline Maria Vasconcelos Lima, and Veridiana Maria Brianezi Dignani De Moura. "Portal vein hypoplasia in a Dalmatian dog." doi:10.5455/OVJ.2026.v16.i7.16


MLA (The Modern Language Association) Style

Carrijo, Letícia Lopes, Vitor Eduardo Arantes De Barros, Giulia De Castro Silva, Mariana Moreira Lopes, Alexandra Moura Fraga, Luísa Pinheiro Moreira, Iago Martins Oliveira, Marco Augusto Machado Silva, Aline Maria Vasconcelos Lima, and Veridiana Maria Brianezi Dignani De Moura. "Portal vein hypoplasia in a Dalmatian dog." doi:10.5455/OVJ.2026.v16.i7.16


APA (American Psychological Association) Style

Carrijo, L. L., Barros, . V. E. A. D., Silva, . G. D. C., Lopes, . M. M., Fraga, . A. M., Moreira, . L. P., Oliveira, . I. M., Silva, . M. A. M., Lima, . A. M. V. & (2026) Portal vein hypoplasia in a Dalmatian dog. doi:10.5455/OVJ.2026.v16.i7.16


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