Fig 6. Hemorrhage in the spinal cord (patient 7, DTI6d). An 18-year-old male patient presented with a sudden paraplegia because of hemorrhage in a thoracic AVM. When he was admitted 3 months later, the neurologic status was the same (McCormick IV).
A, MR imaging showed a nodular heterogeneous signal intensity inside the thoracic cord at the T2 level, corresponding with the point of bleeding.
B, The cord hemorrhage was located in the vicinity of the nidus that harbored an associated arterial aneurysm in the anterior sulcus of the cord with concomitant mass effect on the anterior spinal artery (arrow). An associated T2 hypointensity corresponding with hemosiderin was located at the anterior part of the cord and spread cranially to the midbrain and caudally to T4 level.
C, FT6d showed an interruption of all of the tracts at the T2-level (arrow), presumably because of susceptibility artifacts related to hemosiderin.