Schwannoma at C3-4 on the left, within the neural foramen and compressing the cord

An enhancing mass lesion is seen, centered within the neural foramen – the latter is enlarged, indicating that the lesion is long standing in nature. There is marked cord compression, with abnormal high signal intensity within the cord on the T2-weighted exam, indicative of either gliosis or edema. The patient presented clinically with numbness in both hands for one year, and progressive weakness for 3 weeks in the arms and legs. On follow-up exam following resection, the cord returned to normal caliber at the level of prior compression, however with residual mild gliosis on the left (image not shown).

Schwannoma at C3-4 on the left, within the neural foramen and compressing the cord
Part of the on-line supplement to Neuroradiology – The Essentials with MR and CT (© 2015)