8 year old male neutered Domestic Shorthair with 1 month of anorexia and weight loss. What is the primary problem?
Findings
There is a rounded soft tissue mass superimposed on the heart base on both lateral projections, causing ventral deviation of the carina. On the ventrodorsal and dorsoventral projections, there is a mediastinal shift to the left and atelectasis of the left lung lobes. The right lung lobes are hyperinflated. There is a moderate bronchial pattern throughout the lungs.
Differential Diagnosis
- Pulmonary mass causing bronchial obstruction and secondary volume loss in the left lung lobes (neoplasia, abscess, granuloma).
Diagnosis
- Pulmonary abscess (Nocardia or Actinomyces)
- The mass was confirmed by ultrasound and a fine needle aspirate was obtained for cytology. No further treatment was pursued.
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