Peer-reviewed veterinary case report
Dog with brain tumor showing unusual bright MRI signal on T1 images
By Hasegawa, Daisuke et al.·Published in The Journal of veterinary medical science·2008·Department of Veterinary Radiology, Japan·View original on PubMed →
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Original publication title: A meningioma with hyperintensity on T1-weighted images in a dog.
- Species:
- dog
Plain-English summary
A 6-year-old male Pomeranian was brought in for recurrent seizures and weakness on the left side of his body. An MRI showed a mass in his brain that was bright on certain scans, indicating a meningioma, which is a type of tumor. The dog underwent surgery to remove the tumor, and the procedure was successful. After surgery, the dog’s symptoms improved, and he was able to recover well.
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Abstract
A male six-year-old Pomeranian showed recurrent seizures and progressive left hemiparesis. MRI revealed a mass in the right paramedian frontal-temporal region with hyperintensity on T1-weighted (T1W) and mixed-intensity on T2-weighted (T2W) images. After gadolinium enhancement, the mass was enhanced homogenously and demonstrated the dural tail sign. Surgical resection of mass was performed and its histological diagnosis was meningioma. The meningioma of this case had a high cellular density with some lipid contents and intra- and extra-tumor hemorrhage, however, calcification was not found. These cellular characteristics may contribute to a higher signal intensity on T1W imaging.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/18628604/