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Case Report


A rare case of concurrent renal agenesis and Ectopia in a feline system

Yury Carantino Costa Andrade, Cicera Paloma De Sousa, Anne Karoline Mendes Da Silva, Lara Vilela Soares, Maria Eduarda Raffaini De Oliveira Cunha, Suellen Rodrigues Maia, Marian Acácia Fornazier Magalhães, Patrícia Alves Dos Reis, Leandro Zuccolotto Crivellenti.


Abstract
Background:
This report describes the first documented case of renal agenesis associated with ectopia of the contralateral kidney in a feline in veterinary medicine. Unilateral renal agenesis is a rare congenital anomaly characterized by the complete absence of one kidney. Renal ectopia, in turn, refers to the anomalous location of the kidney and is a rare condition. The simultaneous occurrence of these anomalies is extremely uncommon.

Case Description:
A 2-year-old spayed female mixed-breed cat presented with apathy, hyporexia, and vomiting. Laboratory tests revealed azotemia, and imaging tests confirmed the absence of the right kidney and the ectopic position of the left kidney, as well as alterations compatible with chronic kidney disease. Abdominal ultrasonography and excretory urography confirmed the diagnosis.

Conclusion:
Coexisting renal agenesis and ectopia are rare conditions in humans, and there are no reports of them in felines. Despite its rarity, the condition is compatible with life, as long as it is diagnosed early and continuously monitored.

Key words: Anomaly; Excretory urography; Rareness.


 
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How to Cite this Article
Pubmed Style

Andrade YCC, Sousa CPD, Silva AKMD, Soares LV, , Maia SR, Magalhães MAF, Reis PAD, Crivellenti LZ. A rare case of concurrent renal agenesis and Ectopia in a feline system. Open Vet. J.. 2026; 16(3): 1941-1946. doi:10.5455/OVJ.2026.v16.i3.49

Web Style

Andrade YCC, Sousa CPD, Silva AKMD, Soares LV, , Maia SR, Magalhães MAF, Reis PAD, Crivellenti LZ. A rare case of concurrent renal agenesis and Ectopia in a feline system. https://www.openveterinaryjournal.com/?mno=271339 [Access: March 31, 2026]. doi:10.5455/OVJ.2026.v16.i3.49

AMA (American Medical Association) Style

Andrade YCC, Sousa CPD, Silva AKMD, Soares LV, , Maia SR, Magalhães MAF, Reis PAD, Crivellenti LZ. A rare case of concurrent renal agenesis and Ectopia in a feline system. Open Vet. J.. 2026; 16(3): 1941-1946. doi:10.5455/OVJ.2026.v16.i3.49


Vancouver/ICMJE Style

Andrade YCC, Sousa CPD, Silva AKMD, Soares LV, , Maia SR, Magalhães MAF, Reis PAD, Crivellenti LZ. A rare case of concurrent renal agenesis and Ectopia in a feline system. Open Vet. J.. (2026), [cited March 31, 2026]; 16(3): 1941-1946. doi:10.5455/OVJ.2026.v16.i3.49


Harvard Style

Andrade, Y. C. C., Sousa, . C. P. D., Silva, . A. K. M. D., Soares, . L. V., , Maia, . S. R., Magalhães, . M. A. F., Reis, . P. A. D. & Crivellenti, . L. Z. (2026) A rare case of concurrent renal agenesis and Ectopia in a feline system. Open Vet. J., 16 (3), 1941-1946. doi:10.5455/OVJ.2026.v16.i3.49


Turabian Style

Andrade, Yury Carantino Costa, Cicera Paloma De Sousa, Anne Karoline Mendes Da Silva, Lara Vilela Soares, Maria Eduarda Raffaini De Oliveira Cunha, Suellen Rodrigues Maia, Marian Acácia Fornazier Magalhães, Patrícia Alves Dos Reis, and Leandro Zuccolotto Crivellenti. 2026. A rare case of concurrent renal agenesis and Ectopia in a feline system. Open Veterinary Journal, 16 (3), 1941-1946. doi:10.5455/OVJ.2026.v16.i3.49


Chicago Style

Andrade, Yury Carantino Costa, Cicera Paloma De Sousa, Anne Karoline Mendes Da Silva, Lara Vilela Soares, Maria Eduarda Raffaini De Oliveira Cunha, Suellen Rodrigues Maia, Marian Acácia Fornazier Magalhães, Patrícia Alves Dos Reis, and Leandro Zuccolotto Crivellenti. "A rare case of concurrent renal agenesis and Ectopia in a feline system." Open Veterinary Journal 16 (2026), 1941-1946. doi:10.5455/OVJ.2026.v16.i3.49


MLA (The Modern Language Association) Style

Andrade, Yury Carantino Costa, Cicera Paloma De Sousa, Anne Karoline Mendes Da Silva, Lara Vilela Soares, Maria Eduarda Raffaini De Oliveira Cunha, Suellen Rodrigues Maia, Marian Acácia Fornazier Magalhães, Patrícia Alves Dos Reis, and Leandro Zuccolotto Crivellenti. "A rare case of concurrent renal agenesis and Ectopia in a feline system." Open Veterinary Journal 16.3 (2026), 1941-1946. Print. doi:10.5455/OVJ.2026.v16.i3.49


APA (American Psychological Association) Style

Andrade, Y. C. C., Sousa, . C. P. D., Silva, . A. K. M. D., Soares, . L. V., , Maia, . S. R., Magalhães, . M. A. F., Reis, . P. A. D. & Crivellenti, . L. Z. (2026) A rare case of concurrent renal agenesis and Ectopia in a feline system. Open Veterinary Journal, 16 (3), 1941-1946. doi:10.5455/OVJ.2026.v16.i3.49


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