Peer-reviewed veterinary case report
Malignant melanoma showing bright masses on CT in a dog
By van der Laan, Luzanne & Le Roux, Christelle·Published in Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·2024·Department of Companion Animal ClinicalStudies·View original on PubMed →
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Original publication title: Malignant melanoma and lymph node metastases appearing as hyperattenuating masses on computed tomography in a dog.
- Species:
- dog
Plain-English summary
A 16-year-old male Dachshund cross was taken to the vet for a dental issue and a noticeable mass on the right side of his face. A CT scan showed several unusual masses in the tissue near his jaw, and the nearby lymph nodes were also enlarged. After further testing, the vet diagnosed him with malignant melanoma, a type of skin cancer that had spread to the lymph nodes. This case highlights how melanoma can appear on imaging scans in dogs.
People also search for: dog facial mass · Dachshund melanoma symptoms · dog lymph node swelling treatment
Abstract
A 16-year-old male castrated Dachshund cross dog was referred for a dental and a mass on the right side of the face. CT revealed several heterogenous precontrast hyperattenuating masses within the subcutaneous tissue over the masseter muscle, demonstrating marked contrast uptake. The ipsilateral mandibular lymph nodes were mildly enlarged and markedly hyperattenuating on precontrast images. A histopathological final diagnosis of malignant melanoma with regional lymph node metastasis was made, and the hyperattenuating appearance was postulated to be due to its melanin content. This is the first published report of melanoma appearing as hyperattenuating masses on CT in small animals.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/38570924/