Page 459 - Atlas of Small Animal CT and MRI

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Figure 4.5.7 Feline Bronchial Disease with Luminal Obstruction (Feline) CT

(a) DX, LLAT (b) DX, DV (c) CT, DP

(d) CT, TP (e) CT, TP (f) CT, TP
11y MC Domestic Shorthair with chronic cough. Thoracic radiographs show a heavy generalized bronchial pattern (a,b: arrowheads).
There are also multiple pulmonary masses or regions of consolidation, best seen in the right cranial lung lobe (a: arrow). On CT images,
in addition to documenting bronchial wall thickening, the masses are revealed to be large bronchial luminal concretions of inspissated
airway exudates (c,d: arrows), the largest of which involves the right cranial lobe bronchus. An arborizing concretion in the right caudal
lung lobe typifies the “tree‐in‐bud” pattern (e: arrowhead). The bronchial branching pattern is clearly defined on a thinly collimated
image (f: arrowhead). Bronchoscopy findings included mucosal hyperemia and stenosis and occlusion of multiple bronchi. Bronchoalveolar
lavage cytology was suppurative inflammation with mild chronic hemorrhage.

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