Figure 4
From: MR imaging of venous malformations: sciatic nerve infiltration patterns and involved muscle groups
Infiltration patterns of vascular anomalies in neural tissue following the classification of Prasad et al.9. The left and middle row show schematic illustrations of infiltration patterns in longitudinal and cross-sectional view, respectively. The right row exemplarily displays the corresponding infiltration patterns observed on axial T2-weighted images. (A) Normal nerve without any infiltration by a vascular anomaly. (B) VM with subepineurial infiltration of the sciatic nerve. (C) VM with subparaneurial infiltration of the tibial nerve. (D) VM with extraneural manifestation around the sciatic nerve.
