Fig. 1

Magnetic resonance imaging (MRI) and computed tomography (CT) of a dog’s head. Sagittal T2-weighted (a), transverse T2-weighted (b) and dorsal T1-weighted (c) sequences; bone reconstruction in sagittal (d), transverse (e) and dorsal (f) orientation. MRI and CT show a left sided naso-ethmoidal meningoencephalocele (empty arrowhead) protruding through a defect of the cribriform plate (filled arrowhead)