A box plot showing Tumor necrosis factor‐concentrations in the different etiologies causing seizures within the study group. IE, idiopathic epilepsy; ME, meningoencephalitis. Box and whiskers plots of the Tumor necrosis factor‐concentrations of the different etiologies causing seizures within the study group ie, idiopathic epilepsy (7 dogs), tumor (7 dogs), meningoencephalitis (3 dogs), and the control group (12 dogs). The line within the boxes represents the median, whereas the boxes represent the interquartile range, the whiskers represent the range and outliers are marked as asterisks. Posthoc pair‐wise comparisons were made using Student's t‐test.