Presentation
Presents with two cutaneous masses that have doubled in size in the last two months.
Patient Data
Age: 2 years
Gender: Castrated male
Category: Domestic dog
Organism: Golden retriever
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There is a large lobulated soft tissue mass present within the cranial mediastinum. The mass is causing caudal displacement of the left cranial lung lobe.
Case Discussion
Mediastinal mass may be due to lymphadenopathy (infectious, neoplastic) or primary masses of the local organs such as spinal musculature.
Undifferentiated neoplasia (carcinoma, round cell) was obtained on fine needle aspirate and cytology of the mediastinal mass. The skin masses had similar cytologic diagnoses.
There were also masses present in the left kidney and adrenal gland on abdominal ultrasound. This dog was affected by an aggressive cancer at a young age.
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