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18 Ιουν 2021 · Lobar emphysema in dogs and cats is caused by bronchial collapse during expiration and subsequent air trapping. Congenital causes such as bronchial cartilage defects or acquired causes such as compressive neoplastic lesions have been reported.
1 Απρ 2008 · Ventrodorsal thoracic radiograph of a dog with bronchopneumonia involving the right middle lung lobe. A prominent lobar sign is present on both the cranial and caudal edge of the opaque right middle lung lobe.
Primary lung tumors have variable signs, which depend on the location of the tumor, rate of tumor growth, and the presence of previous or current lung disease. The most common signs in dogs include coughing, weight loss, lethargy, and labored breathing.
27 Μαΐ 2016 · Usually, a lobar sign is observed when a lobe having increased opacity caused by alveolar air being replaced with fluid, exudate, or hemorrhage abuts a normally aerated lobe. Occasionally, a lung mass will extend to the periphery of a lobe, and this too can create a lobar sign with the adjacent normal lobe, although in this instance, the shape ...
1 Νοε 2019 · Bronchiectasis implies dilation of large (principal, lobar, segmental) and medium (subsegmental) airways; bronchiolectasis refers to dilation of small cartilaginous bronchioles and small airways (defined as airways <2 mm in diameter interposed between larger airways and the acini). In dogs and cats with fibrotic lung disease, bronchi or ...
Primary lung tumors in dogs may occur as single or multiple circumscribed mass lesions, as a diffuse lung pattern, or as a lobar consolidation. In cats, single circumscribed mass lesions are less common, whereas a diffuse lung pattern or lobar consolidation is more frequent.
2 Απρ 2023 · The most common mass in the dog is found in the left caudal lung lobe and is secondary to a primary lung tumor (bronchogenic, bronchoalveolar or squamous cell carcinomas; Figure 16.23). Masses in the right middle lung lobe in dogs have been shown to most commonly be histiocytic sarcoma ( Figure 16.24 ).
