Peer-reviewed veterinary case report
Microwave ablation treatment for retroperitoneal tumors in three dogs
By Culp, William T N et al.·Published in Journal of the American Veterinary Medical Association·2021·View original on PubMed →
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Original publication title: Use of percutaneous microwave ablation in the treatment of retroperitoneal neoplasia in three dogs.
- Species:
- dog
Plain-English summary
Three dogs aged 11 to 13 years were diagnosed with tumors in their abdomen, either on the kidneys or near the diaphragm. They underwent a treatment called percutaneous microwave ablation (MWA), where doctors used imaging to guide probes that delivered microwave energy to destroy the tumors. After the procedure, imaging showed that the treatment was successful, and all dogs went home within three days without major complications. While two of the dogs passed away months later from unrelated causes, one dog was still alive 64 months after the treatment, suggesting that MWA can be a safe option for treating certain abdominal tumors in dogs.
People also search for: dog abdominal tumor treatment · microwave ablation for dogs · dog kidney cancer survival rate
Abstract
CASE DESCRIPTION: 3 dogs with retroperitoneal masses (2 renal and 1 located near the diaphragm) were treated by percutaneous microwave ablation (MWA). CLINICAL FINDINGS: Dogs between 11 and 13 years of age weighing between 13.7 and 43.8 kg had either a renal mass (n = 2) or a mass located in the caudodorsal aspect of the retroperitoneal space near the right side of the diaphragm (1). Cytology revealed that one of the renal masses and the mass located near the diaphragm were malignant neoplasias. Findings on cytologic evaluation of a sample of the other renal mass was nondiagnostic. Maximum mass diameters ranged between 1.4 and 2.5 cm. TREATMENT AND OUTCOME: All dogs were treated by percutaneous MWA. Probes were directed into tumors by use of ultrasound and CT guidance, and microwave energy was applied to each mass. Findings on imaging of each mass following MWA was consistent with successful treatment. No intraprocedural or major postprocedural complications occurred, and all dogs were discharged from the hospital within 3 days of treatment. Two dogs died at 3 and 21 months after MWA with no known local recurrence; 1 dog was still alive 64 months after treatment. CLINICAL RELEVANCE: Although the indications for MWA in the treatment of neoplasia in companion animals are limited, the outcomes of dogs in the present report provided preliminary evidence that percutaneous MWA can be safely used to effectively treat retroperitoneal neoplasia. This procedure was successfully performed with image guidance in all 3 dogs.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/34727078/