Follow-up MR images obtained 3 weeks after cyanide poisoning.A, Fluid-attenuated inversion recovery (9000/110 [TR/TE]) image. Discrete hyperintense linear signals can be seen along the sensorimotor cortex.B, T1-weighted (550/14) image obtained before the administration of contrast agent.C, T1-weighted (715/17) image obtained after the administration of contrast agent. Massive contrast enhancement can be seen along the central region, consistent with pseudolaminar necrosis.D, Fluid-attenuated inversion recovery (9000/110) image. Discrete hyperintense signals can be seen in the caudate nuclei bilaterally.E, Unenhanced T1-weighted (550/14) image shows hyperintense signals in the caudate nuclei bilaterally, consistent with hemorrhage.F, T1-weighted (715/17) image obtained after administration of contrast agent. Massive contrast enhancement can be seen in the lentiform nuclei and the caudate nuclei bilaterally.
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