Fig. 1From: Spontaneous regression of extradural intraspinal cysts in a dog: a case reportInitial (a) and 3.5-year follow-up (b) left parasagittal T2-weighted magnetic resonance imaging (MRI) of extradural intraspinal cysts in a German Shepherd dog. Cysts can be seen at L5–6, L6–7, L7-S1, and S1–2. All cysts except the one at S1–2 are smaller on the follow-up MRIBack to article page