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Case Report


Canine primary ureteral leiomyosarcoma treated with unilateral left ureteronephrectomy

Danilo Cintra de Sousa, Ygor Amaral Rossi, Rafael Torres Neto, Carlos Eduardo Fonseca-Alves, Larissa Fernandes Magalhães, Cynthia M. Bueno, Denner Santos Dos Anjos.


Abstract
Background:
Primary ureteral neoplasms are extremely rare in dogs, and ureteral involvement usually occurs owing to the invasion of renal and bladder tumors.
Case Description:
This case report describes a 12-year-old intact male mixed-breed dog referred to a private clinic with a six-month history of abdominal distention. A physical examination revealed mild abdominal pain. Hematological tests detected normocytic-normochromic anemia (hematocrit 33.6% [reference interval-RI: 37-55%], red blood cells 4.93 M/µL [RI: 5.5-8.5 M/µL] and hemoglobin 12.4 g/dL [RI: 12-18.0 g/dL]). The results from the leukogram, thrombogram, renal, and hepatic panels were within the reference intervals for dogs. Abdominal ultrasonography revealed a cavitary mass measuring approximately 12 cm in diameter as the largest tumor in the left abdominal region over the left hepatic lobe or mesenteric site. Chest radiography did not reveal any metastasis. Therefore, the patient underwent exploratory laparotomy, during which the left ureter was found to be affected by a 12-centimeter mass that adhered to the left kidney. A unilateral left ureteronephrectomy was performed, and histology and immunohistochemistry confirmed well-differentiated primary ureteral leiomyosarcoma. The patient survived for 130 days but died of lung metastasis.
Conclusion:
Ureteral leiomyosarcoma should be investigated and included in the list of differential diagnoses for primary ureteral neoplasms. Regardless of the therapeutic modality, the prognosis of ureteral leiomyosarcoma may be unfavorable, as shown in this report.

Key words: Leiomyosarcoma, Dogs, Ureteral neoplasm, Ureteronephrectomy


 
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How to Cite this Article
Pubmed Style

Sousa DCd, Rossi YA, Neto RT, Fonseca-Alves CE, Magalhães LF, Bueno CM, Anjos DSD. Canine primary ureteral leiomyosarcoma treated with unilateral left ureteronephrectomy. Open Vet J. 2024; 14(7): 1708-1715. doi:10.5455/OVJ.2024.v14.i7.20

Web Style

Sousa DCd, Rossi YA, Neto RT, Fonseca-Alves CE, Magalhães LF, Bueno CM, Anjos DSD. Canine primary ureteral leiomyosarcoma treated with unilateral left ureteronephrectomy. https://www.openveterinaryjournal.com/?mno=147794 [Access: September 16, 2024]. doi:10.5455/OVJ.2024.v14.i7.20

AMA (American Medical Association) Style

Sousa DCd, Rossi YA, Neto RT, Fonseca-Alves CE, Magalhães LF, Bueno CM, Anjos DSD. Canine primary ureteral leiomyosarcoma treated with unilateral left ureteronephrectomy. Open Vet J. 2024; 14(7): 1708-1715. doi:10.5455/OVJ.2024.v14.i7.20


Vancouver/ICMJE Style

Sousa DCd, Rossi YA, Neto RT, Fonseca-Alves CE, Magalhães LF, Bueno CM, Anjos DSD. Canine primary ureteral leiomyosarcoma treated with unilateral left ureteronephrectomy. Open Vet J. (2024), [cited September 16, 2024]; 14(7): 1708-1715. doi:10.5455/OVJ.2024.v14.i7.20


Harvard Style

Sousa, D. C. d., Rossi, . Y. A., Neto, . R. T., Fonseca-Alves, . C. E., Magalhães, . L. F., Bueno, . C. M. & Anjos, . D. S. D. (2024) Canine primary ureteral leiomyosarcoma treated with unilateral left ureteronephrectomy. Open Vet J, 14 (7), 1708-1715. doi:10.5455/OVJ.2024.v14.i7.20


Turabian Style

Sousa, Danilo Cintra de, Ygor Amaral Rossi, Rafael Torres Neto, Carlos Eduardo Fonseca-Alves, Larissa Fernandes Magalhães, Cynthia M. Bueno, and Denner Santos Dos Anjos. 2024. Canine primary ureteral leiomyosarcoma treated with unilateral left ureteronephrectomy. Open Veterinary Journal, 14 (7), 1708-1715. doi:10.5455/OVJ.2024.v14.i7.20


Chicago Style

Sousa, Danilo Cintra de, Ygor Amaral Rossi, Rafael Torres Neto, Carlos Eduardo Fonseca-Alves, Larissa Fernandes Magalhães, Cynthia M. Bueno, and Denner Santos Dos Anjos. "Canine primary ureteral leiomyosarcoma treated with unilateral left ureteronephrectomy." Open Veterinary Journal 14 (2024), 1708-1715. doi:10.5455/OVJ.2024.v14.i7.20


MLA (The Modern Language Association) Style

Sousa, Danilo Cintra de, Ygor Amaral Rossi, Rafael Torres Neto, Carlos Eduardo Fonseca-Alves, Larissa Fernandes Magalhães, Cynthia M. Bueno, and Denner Santos Dos Anjos. "Canine primary ureteral leiomyosarcoma treated with unilateral left ureteronephrectomy." Open Veterinary Journal 14.7 (2024), 1708-1715. Print. doi:10.5455/OVJ.2024.v14.i7.20


APA (American Psychological Association) Style

Sousa, D. C. d., Rossi, . Y. A., Neto, . R. T., Fonseca-Alves, . C. E., Magalhães, . L. F., Bueno, . C. M. & Anjos, . D. S. D. (2024) Canine primary ureteral leiomyosarcoma treated with unilateral left ureteronephrectomy. Open Veterinary Journal, 14 (7), 1708-1715. doi:10.5455/OVJ.2024.v14.i7.20


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