Page 483 - Atlas of Small Animal CT and MRI

Small Airways and Parenchyma 473

Figure 4.6.16 Foreign Body Pneumonia (Canine) CT

(a) DX, DV (b) DX, DV (c) ES

(d) CT, TP (e) CT, TP (f) GP
3y FS German Shorthair Pointer with chronic cough and more recent onset of weight loss and lethargy. Interstitial to alveolar infil-
trates are present involving multiple lung lobes on thoracic radiographs (a), and there is an ill‐defined mass in the periphery of the
left caudal lung lobe (b: arrowheads). Peripheral consolidating alveolar infiltrates with air bronchograms are present in multiple lung
lobes on CT images and appear to be centered on distal airways (d: arrowheads). Ground‐glass opacity surrounds the larger lesions
(e: arrowheads). The peripheral and multifocal distribution of alveolar infiltrates is characteristic of pneumonia induced by migrating
plant awn foreign bodies lodged in distal airways. Multiple plant awns were detected (c: arrowhead). Representative image of a
bronchoscopically retrieved plant awn (from a different patient) (f). Bronchoalveolar lavage revealed septic suppurative inflammation
with intracytoplasmic organisms.

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