Peer-reviewed veterinary case report
Dog developed new tumor after rib osteosarcoma needle test
By Faletti, Tasha et al.·Published in Frontiers in veterinary science·2022·Department of Veterinary Clinical Sciences, United States·View original on PubMed →
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Original publication title: Potential Seeding From Fine-Needle Aspiration of an Axial Osteosarcoma: A Case Report.
- Species:
- dog
Plain-English summary
An 8-year-old female spayed Golden Retriever was brought to the vet with a firm, painless lump on her rib that had been there for three weeks. After the vet used a fine-needle aspiration (FNA) to collect a sample from the mass, a new lump appeared nearby a few days later. Both lumps were found to be osteosarcoma, a type of bone cancer. While it’s possible that the new lump was a result of the cancer spreading, it’s also likely that it was caused by the FNA procedure itself. Despite this risk, the vet believes that using FNA for diagnosing bone tumors is still important and beneficial.
People also search for: dog rib tumor · Golden Retriever osteosarcoma · fine-needle aspiration risks in dogs
Abstract
This report describes the first potential case of seeding after fine-needle aspiration (FNA) of a rib osteosarcoma in a dog. An 8-year-old, 28-kg female spayed Golden Retriever was presented to her primary veterinarian with a 3-week history of a 3-cm firm, unpainful, immobile mass arising from the 9th rib. The mass was aspirated and submitted for cytological examination. A subcutaneous nodule developed several days after the FNA was performed in a location immediately overlying but distinct from the primary rib tumor on palpation. Both the primary mass and the newly diagnosed subcutaneous nodule were biopsied and were consistent with an osteosarcoma. Although it cannot be ruled out that the subcutaneous lesion was metastatic, seeding was a reasonable explanation based on where the new mass was located and how quickly it appeared after the FNA was performed. The aim of this case report was to describe the possibility of tumor seeding during FNA for osteosarcoma. It is the authors' opinion that utility of cytological diagnosis of bone tumors outweighs the risk of possible seeding and should continue to be used as a routine diagnostic test for the diagnosis of aggressive bone lesions.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/35573421/