Skin mass from a dog
Case information
A 5-year-old male castrated Labrador Retriever was presented for a mass on the right forelimb. The owner first noted the mass about a week ago and noted that it had gotten slightly bigger since that time. The dog had also been seen licking at the lesion. The dermal mass was ~1cm in diameter, round, raised, somewhat firm, and appeared superficially irritated. It was located on the dorsal surface of the 5th digit. The submitting veterinarian performed a fine needle aspirate and submitted Diff Quik®-stained squash prep smears for cytologic evaluation.
- What cell types are present? How would you characterize the inflammation?
- What is your interpretation of the cells in Figure 3?
- What is the likely source of the inflammation? Where did it originate from?
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