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Peer-reviewed veterinary case report

Dog with right front leg lameness caused by muscle cancer spread

By Forterre, F et al.·Published in Journal of veterinary medicine. A, Physiology, pathology, clinical medicine·2007·Department of Small Animal Surgery, Germany·View original on PubMed

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Original publication title: Adenocarcinoma metastasis of the intertransversarius cervicis muscle eliciting a right forelimb lameness in a dog.

Species:
dog

Plain-English summary

A dog with chronic lameness in the right front leg was found to have a cancerous growth in the muscle near the neck, identified through an MRI. The imaging showed a specific abnormality that suggested a tumor, which was later confirmed to be a metastatic adenocarcinoma (a type of cancer that spreads from another location). The dog underwent surgery to remove the tumor and initially recovered well. Unfortunately, six months later, the dog had to be euthanized due to cancer spreading to the lungs, and the original tumor site could not be determined.

People also search for: dog lameness right front leg · dog cancer treatment · metastatic adenocarcinoma in dogs · dog neck tumor symptoms

Abstract

This article describes identification of a metastatic adenocarcinoma to the intertransversarius cervicis muscle using magnetic resonance imaging (MRI) in a dog that presented with chronic lameness of the right forelimb. Magnetic resonance imaging revealed a right sided, ovoid signal abnormality within the intertransversarius cervicis muscle lateral to the sixth cervical (C6) vertebra. The lesion was uniform, hyperintense on T2- and isointense on T1-weighted images to muscle and exhibited uniform contrast enhancement on T1-weighted images. The MRI findings were consistent with a neoplasia. Surgical excision was performed. Histopathological diagnosis was metastatic fibrous adenocarcinoma. The dog recovered rapidly but 6 months post-operatively he was killed because of lung metastases. Necropsy was declined and the primary tumour could not be identified.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/17523958/