Page 482 - Atlas of Small Animal CT and MRI

472 Atlas of Small Animal CT and MRI

Figure 4.6.15 Necrotizing Pleuropneumonia (Canine) CT

(a) DX, DV (b) CT, TP (c) CT, TP

(d) GP (e) CT, TP (f) CT, TP
12y FS Golden Retriever being treated for pneumonia and pneumothorax. Thoracostomy catheters were placed prior to acquiring the
imaging studies. Radiographs revealed consolidating alveolar infiltrates in multiple lobes (a), which were more pronounced in the depend-
ent regions of the lung (best seen on lateral radiographs, not included here) and consistent with bronchopneumonia. Representative CT
images (b,c,e) are ordered from cranial to caudal. Image f represents a thinly collimated magnification of image c. There are generalized
interstitial infiltrates with ground‐glass appearance in all visible lung lobes (b,c,e: black arrow), which coalesce into alveolar infiltrates
in dependent regions of the lungs (b,c,e: black arrowheads). Mild pneumothorax is present bilaterally (c: white arrows). The right thoracic
wall emphysema is a sequela of thoracostomy catheterization. Pleural fluid cytology was interpreted as marked suppurative inflamma-
tion, and microbial culture yielded large numbers of hemolytic E. coli. Gross postmortem examination revealed lung discoloration and
volume loss with palpable regions of consolidation (d).

472