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Feocromocitona maligno com invasão da veia cava: um caso clínico
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Abstract(s)
O feocromocitoma é um tumor da glândula adrenal pouco frequente em cães. De facto, os sinais são paroxísticos e pouco específicos. Além disso, os meios complementares para diagnosticar este tipo de tumor são limitados em medicina veterinária. Assim, este artigo tem como objetivo apresentar um caso clínico de um feocromocitoma num cão, descrever a abordagem diagnóstica e do procedimento terapêutico adoptado. Este caso ocorreu num cão de 10 anos que apresentava um feocromocitoma maligno na glândula adrenal direita. O seu diagnóstico ocorreu na sequência de um quadro de prostatomegalia recorrente. Este caso tem a particularidade de associar duas patologias endócrinas concorrentes. Além disso, foi confirmada a malignidade do tumor assim como a sua invasão vascular da veia cava caudal, formando um trombo parcialmente obstrutivo. Este estudo mostrará as limitações diagnósticas existentes, bem como a complexidade do tratamento de eleição, a adrenalectomia da glândula em causa associada a uma venotomia da veia cava caudal. Finalmente, este artigo irá rever os aspetos principais para uma gestão bem-sucedida de casos similares.
Pheochromocytoma is an uncommon adrenal gland tumor in dogs. In fact, the signs are paroxysmal and unspecific. In addition, complementary means to diagnose this type of tumor are limited in veterinary medicine. Thus, this article aims to present a clinical case of a pheochromocytoma in a dog, describe the diagnostic approach and the therapeutic procedure adopted. This case occurred in a 10-year-old dog with a malignant pheochromocytoma in the right adrenal gland. His diagnosis followed a recurrent condition of Prostatomegaly. This case has the particularity of associating two competing endocrine pathologies. In addition, the malignancy of the tumor was confirmed as well as its vascular invasion of the caudal vena cava, forming a partially obstructive thrombus. This study will show the existing diagnostic limitations, as well as the complexity of the treatment of choice, the adrenalectomy of the gland in question associated with a caudal vena cava venotomy. Finally, this article will review the main aspects for successful management of similar cases
Pheochromocytoma is an uncommon adrenal gland tumor in dogs. In fact, the signs are paroxysmal and unspecific. In addition, complementary means to diagnose this type of tumor are limited in veterinary medicine. Thus, this article aims to present a clinical case of a pheochromocytoma in a dog, describe the diagnostic approach and the therapeutic procedure adopted. This case occurred in a 10-year-old dog with a malignant pheochromocytoma in the right adrenal gland. His diagnosis followed a recurrent condition of Prostatomegaly. This case has the particularity of associating two competing endocrine pathologies. In addition, the malignancy of the tumor was confirmed as well as its vascular invasion of the caudal vena cava, forming a partially obstructive thrombus. This study will show the existing diagnostic limitations, as well as the complexity of the treatment of choice, the adrenalectomy of the gland in question associated with a caudal vena cava venotomy. Finally, this article will review the main aspects for successful management of similar cases
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Keywords
Concurrente Endocrine Neoplasia Catecolaminas Feocromocitoma Adrenalectomía Venotomia Concurrente Endocrine Neoplasia Catecholamines Pheocromocitoma Adrenalectomy Venotomy