The case for today is a 9-year-old male neutered Labrador Retriever with anorexia and vomiting. Take a look and see what you think!
There is increased soft tissue opacity and widening of the cranial mediastinum. The trachea is elevated cranial to the heart. There is also a broad-based soft tissue opacity dorsal to the second sternebra. There are multifocal, irregular mineral opacities throughout the lung that represent pulmonary osteomas.
There is irregular periosteal reaction on the left humerus.
- radiographs of the left humerus
- abdominal ultrasound
Though we can see there is an abnormality of the humerus on the edge of the film, radiographs of the bone will characterize it better. We also have multifocal or systemic disease, so we need to look for additional problems in the abdomen.
- lymphoma (or other round cell neoplasia)
- fungal disease
- primary bone tumor + one of above systemic diseases
The thoracic findings indicated lymphadenopathy of the cranial mediastinal and sternal lymph nodes. The humeral lesion was just visible on the edge of the radiograph. It’s unusual to have bone involvement with lymphoma and more common with fungal disease.
Case originally posted on September 27, 2007