Tumor embolization is a well-described cause of unexpected death in human oncologic patients; however, it is poorly explored in veterinary medicine. We report a case of pulmonary tumor embolization in a dog with sudden death. During necropsy, a neoplastic mass was observed replacing the left adrenal gland and forming an intravascular thrombus within the central adrenal vein. A large embolus occluded the left pulmonary artery. The adrenal mass was histologically confirmed as a pheochromocytoma, and the embolus was constituted of neoplastic cells. Multiple smaller neoplastic emboli were observed within the pulmonary artery branches. Tumor embolization should be considered as a possible cause of sudden death in dogs, particularly in oncologic patients.
CITATION STYLE
de Aguiar, A., Marcus, V. B., Gonçalves, P. N. C., Butelli, P. H. S., Kommers, G. D., & Flores, M. M. (2024). Sudden death caused by pulmonary tumor embolism in a dog. Ciencia Rural, 54(4). https://doi.org/10.1590/0103-8478cr20220494
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