Benign but not inconsequential, paediatric sciatic nerve neuromuscular choristoma and its longitudinal impact: A case report

Figure 2 Magnetic resonance imaging of the pelvis (August 2024) focusing on the lumbosacral exit foramina. The images highlight enlargement of the neural foramina and a thickened left L5 nerve root (seen in cross-section) caused by the choristoma. There is smooth expansion of the nerve root sleeve (outlined) and no destructive bony changes, consistent with a chronic benign process that leads to widening of the nerve root canals without invasive or infiltrative features. A: Axial view; B: Coronal view.