Peer-reviewed veterinary case report
Dog with painless lump under jaw diagnosed as plasma cell tumor
By Smyroglou, Erasmia et al.Ā·Published in Topics in companion animal medicineĀ·2024Ā·School of Veterinary MedicineĀ·View original on PubMed ā
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Original publication title: Mandibular salivary gland plasma cell tumor in a dog.
- Species:
- dog
Plain-English summary
An 8-year-old Jack Russell Terrier was brought to the vet with a lump in the right side of his neck that had been growing for 10 days. The vet found a solid, painless mass near the dog's salivary gland and performed a fine-needle aspiration, which suggested it might be a plasma cell tumor. After surgically removing the mass and further testing, the diagnosis was confirmed. Fortunately, the dog is now healthy and has been in complete remission for 23 months after the surgery.
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Abstract
An 8-year-old, intact male, Jack Russell Terrier dog was admitted with a 10-day history of an enlargement in the right submandibular area. Clinical examination revealed a subcutaneous, solid, firmly attached and painless mass (3 × 2 cm) located in the area of the right mandibular salivary gland, in an otherwise seemingly healthy dog. Fine-needle-aspiration cytology suggested a round cell neoplasia, most consistent with a plasma cell tumor. Histopathologic and immunohistochemical (MUM1) examination, following surgical excision of the mass, confirmed the diagnosis of a plasma cell tumor embedded in the right mandibular salivary gland. Clinical staging reasonably excluded a disseminated plasma cell tumor. The dog remains healthy and in complete remission 23 months following surgical excision of the mass. Albeit rare, extramedullary plasma cell tumors can affect the salivary glands of dogs.
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Search related cases āOriginal publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/39424055/