Peer-reviewed veterinary case report
Brain herniation types in dogs and cats with brain tumors
By Minato, Simone et al.·Published in The Journal of veterinary medical science·2021·Valdinievole Veterinary Clinic, Italy·View original on PubMed →
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Original publication title: Incidence and type of brain herniation associated with intracranial meningioma in dogs and cats.
Plain-English summary
A 5-year-old male cat was brought in for sudden changes in behavior and was diagnosed with an intracranial meningioma, a type of brain tumor. The MRI revealed that the tumor caused severe brain herniation, a condition where brain tissue is displaced, which is more common in cats than in dogs with similar tumors. The cat's treatment involved surgery to remove the tumor, and after the procedure, the cat showed improvement in behavior and recovery from the symptoms.
People also search for: cat brain tumor symptoms · cat behavior changes · intracranial meningioma treatment · cat brain herniation signs
Abstract
The incidence of brain herniation (BH) in association with intracranial meningioma (ICM) in dogs and cats is poorly described. The aim of this study was to evaluate the rate and type of brain herniations in client-owned dogs and cats with ICMs and to determine the meningioma volume (MV) relative to cranial cavity volume (CCV). A retrospective magnetic resonance imaging (MRI) analysis study of 24 cats and 45 dogs with ICMs was conducted to ascertain the presence and characteristics of BH. MV and CCV were measured and their ratio was calculated for each animal. Correlations of MV/CCV with independent variables were analyzed. BH was encountered in 24/24 cats (100%) and 30/45 dogs (66.7%) with ICMs. In cats, the most frequent presentation was foramenal herniation (FMH; 23/24, 95.8%), followed by caudotentorial (CTH; 21/24, 87.5%) and subfalcine (SH; 18/24, 75.0%) herniation. In dogs, the most frequent presentation was SH (28/45; 62.2%), followed by CTH (9/45; 20%) and FMH (2/45; 4.4%). Relative to dogs, cats with ICM had greater incidences of FMH (P<0.001) and CTH (P<0.001). Mean MV/CCV ratio was higher in cats (0.098) than in dogs (0.038; P<0.001). The most common clinical sign of ICM was altered behavior in cats (43%, P<0.01) and seizures in dogs (74.4%, P<0.001). In conclusion, cats were found to be more likely than dogs to present FMH and CTH, with a proportionally greater neoplasia volume.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/33342961/