Pheochromocytoma in a dog - short communication

  • Cibele Figueira Carvalho Universidade do Grande ABC, Santo André, SP
  • Regina Suplicy Vianna Universidade do Grande ABC, Santo André, SP
  • João Batista da Cruz Universidade do Grande ABC, Santo André, SP
  • Fernando Corleto Maiorino Universidade do Grande ABC, Santo André, SP
  • João Pedro de Andrade Neto Universidade do Grande ABC, Santo André, SP
  • Cibele Rossi Nahas Mazzei Universidade do Grande ABC, Santo André, SP
  • Maria Carla Zinesi Collepicolo Universidade do Grande ABC, Santo André, SP
  • Enio Mori Universidade do Grande ABC, Santo André, SP
Keywords: Adrenal Tumor, Pheochromocitoma, Dog, Diagnosis, Treatment

Abstract

Pheochromocytomas are uncommum tumors arising from the medular adrenal gland, which diagnosis is generally made at the necropsy. These tumors promote cardiac arrhythmias (increase), systemic hypertension and other clinical alterations that are attributed to the increase of the amount of catecholamines released by the tumor cells. This is a case of a fifteen years old female mongrel dog, brought to the Veterinary Hospital at UniABC, whose main complaint was intense itch, sleeplessness and considerable weight loss (12 kg in less than 3 months). The clinical examination showed bilateral mydriasis and deep cutaneous ulcer with muscle exposition, bilaterally in the toracic wall. Abdominal ultrasonography presented two oval solid formations, well-circunscribed, located next to the great vessels and at the cranial edge to left kidney, heterogeneous hipoecogenic aspect, with circumscribed inner anecogenic areas compatible with neoplasic formation in the left adrenal gland with metastases in the regional lumph node. The eletrocardiogram presented alternating wave "t" compatible with increase of cathecolamines. Two global masses of 2 and 4 cm diameter were removed, which was located cranialy to the left kidney, on the great vessels. Grossly, there were small circumscribed brown regions. The average arterial pressure during the surgery was of 150 mmHg and it fell down to 60mmHg during laparorraphy. During the first week after the surgery the dog started to sleep, was more calm and the itch almost disapeared. The diagnosis of pheochromocytoma was established with complementary examinations and concluded after the surgical removal and histopathologic examination.

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Published
2004-04-01
How to Cite
Carvalho, C., Vianna, R., Cruz, J., Maiorino, F., Andrade Neto, J., Mazzei, C., Collepicolo, M., & Mori, E. (2004). Pheochromocytoma in a dog - short communication. Brazilian Journal of Veterinary Research and Animal Science, 41(2), 113-116. https://doi.org/10.1590/S1413-95962004000200006
Section
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