Presentation
Presented with waxing and waning lethargy. The dog had an incident of trauma a few weeks previously.
Patient Data
The cardiac silhouette is enlarged and rounded. There is mild pleural effusion. A small, poorly defined soft tissue nodule is present superimposed over the 6th costochondral junction on the left lateral projection and on the right 6th intercostal space on the VD projection. There is decreased abdominal serosal detail.
Impression:
Pericardial, peritoneal, and pleural effusion. The tricavitary effusion may be related to neoplasia, trauma, or hypoproteinemia.
A liver mass was found on abdominal ultrasound, which appeared to be a hematoma. The effusion and hematoma resolved 10 days later, and the pulmonary nodule was not visible. The pleural effusion was hemorrhagic, and the peritoneal effusion was a modified transudate.
New pulmonary nodules are visible in the pulmonary parenchyma. The cardiac silhouette is normal in size, and the peritoneal detail is normal.
Impression:
Pulmonary nodules are consistent with metastatic neoplasia.
Pulmonary nodules at the pleural surface disrupt the normal hyperechoic appearance. The nodules are uniform, hypoechoic, and slightly irregular.
Case Discussion
The dog developed multiple skin lesions at the time of the 6-month follow up images. These were biopsied and histopathology showed hemangiosarcoma. This was likely the cause of the pericardial effusion and liver hematoma earlier, however there was no tissue available to biopsy and the symptoms resolved at that time.
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