Figure 2.

Transabdominal thoracic sonography of the same cat shown in Figure 1, performed immediately following thoracic radiographic evaluation. Images depict the diaphragmatic hepatic view of the caudal lung fields. (a) The right caudal lung field. The liver and gall bladder (GB) are to the right of the diaphragm (arrows). Note the multiple (>3), hyperechoic B-lines (comet tail artifacts) emanating to the left of the image into the distal field from the pleuropulmonary–diaphragmatic junction. These are indicative of consolidated lung fields and mixed interstitial pulmonary pathology within the right caudal lung field. (b) Similar images as (a) of the right caudal lung field. The gall bladder is not within the image field of view. Note a larger nodule (arrowhead) and ‘shred’ sign (denoted by the white ‘V’). In all sonographic images, the margins of the pleura are irregular. In real time, multifocal, intermittent ‘shred’ signs were noted. A shred sign is consistent with alveolar parenchymal disease in contact with aerated sections of lung producing irregular sonographic borders. (c) The left caudal lung field. Note that findings within the left caudal lung lobe were similar to that of the right. Falciform fat (labeled ‘falc fat’) and the liver are to the right of the pleuropulmonary–diaphragmatic interface (arrows)