Malignant chemokidoma in a Weimaraner dog: Case report

Abstract

The goal of this case report is to describe an occurrence of malginant chemodectoma in a weimaraner dog. Chemodectomas are tumors formed from chemoreceptors present at the heart base involving the aortic and carotid body, can be benign (most common) or malignant. These tumors are uncommon in small animal clinical and, when they occur, are usually associated with older dogs and brachiocephalic breeds (boxer, bulldog, among others). The clinical diagnosis is cornered, because the most of affected animals are asymptomatic, and when present, the clinical signs are non-specific and, therefore, diagnosed through routine radiographs or as found in post-mortem examination. In this case, the animal went to clinical treatment for some other reason (subcutaneous nodules), and the chemodectoma was investigated after be perceived increased respiration and buffering lung sounds in some thoracic regions. The final diagnosis was possible after thoracic radiography and histopathology of tumor tissue through "tru-cut" technique with the aid of ultrasound Doppler tool. In addition to refer to the occurrence of chemodectoma in a non-biased race, the importance of this work is also about gives the owner approach against a malignant chronic pathology without possibility of correction.