This 12 year old MN Hound mix dog presented for sudden cough. No nasal discharge. History of rodenticide ingestion in the last 4 days but PT/PTT normal
CBC: WBC 17,100.
This 12 year old MN Hound mix dog presented for sudden cough. No nasal discharge. History of rodenticide ingestion in the last 4 days but PT/PTT normal
CBC: WBC 17,100.
Rads of the thorax – The axial skeleton presents with expected age related changes such as bridging
spondylosis at T5/6.
A marked & largely well defined regional alveolar infiltrate is seen within the right
caudal lung lobe. The consolidation is centered around the main lobar bronchus in the
central area of the lung lobe. The lung volume is maintained. Part of the right middle
lobe appears to be affected by the alveolar infiltrates too.
Multifocal pulmonary osteoma, and pleural plaques are noted emphasizing the
cranioventral lung fields as an age-related incidental finding.
There is mild hypovolemia with mild microcardia and underperfusion of the lung.
The mediastinum including the mediastinal lymph nodes is within normal limits.
The radiographic findings are suggestive for a primary or secondary neoplasia of the lung. Lobar pneumonia is considered as differential diagnosis, but lower for potential here as
the distribution of the findings is not typical for an inflammatory infiltrate. An inhaled
foreign body with localized pneumonia or abscess formation could explain the
distribution of the changes to the right caudal lobe, but the solid appearance and well
demarcation of the lesion is rather atypical for a septic inflammatory infiltrate.
Ultrasound guided fine needle aspiration is recommended for further definition. The
lesion is accessible via the 5th/6th intercostal space using a rightsided parasternal
approach.
In case this is inconclusive CT and bronchosopy with BAL would be ideal for further
workup.
