Multiple lung lobectomies in a cat with bronchogenic adenocarcinoma
A thirteen year old spayed female domestic shorthair was presented to the Cornell University Hospital for Animals for weight loss, inappetence, and a mass within the right caudal and accessory lung lobes. Cytology obtained via ultrasound guided aspiration of the mass was consistent with carcinoma. Decreased vesicular sounds were ausculted in the right caudodorsal lung field. Three view thoracic radiographs and thoracic computed tomography (CT) with contrast enhancement identified a large, well-margined, soft tissue attenuating mass occupying the entire right caudal and accessory lung lobes that abruptly occluded all bronchi. A presumptive diagnosis of primary pulmonary neoplasia was made based on the imaging results, and no obvious intrathoracic metastasis was identified. Multiple lung lobectomies were performed; however, the mass was incompletely excised due to adherence to a large left pulmonary blood vessel and the pericardium adjacent to the right atrium. One day post-operatively, the patient developed left hind limb paresis. Vascular ultrasound revealed an aortic embolus suspected to be of neoplastic origin. Three days post-operatively, the patient became dyspneic as a result of tension pneumothorax, and was euthanized. Histopathology definitively diagnosed tubulopapillary adenocarcinoma. Clinical signs, diagnosis, treatment, and prognosis of primary pulmonary neoplasia in felines are discussed.
Senior seminar paperSeminar SF610.1 2010
Cats -- Diseases -- Treatment -- Case studies