Fig. 1From: MR imaging features of spinal pilocytic astrocytomaCervical PA. a, Preoperative sagittal T2-weighted MR image shows a solid lesion in the cervical region presenting slightly hyperintense signal. Mild peritumoral edema is seen. b, Sagittal T1-weighted MR image shows a high signal intensity region corresponding to hemorrhage in the tumor. c, Sagittal contrast-enhanced T1-weighted MR image shows patchy enhancement of the tumor. d, ADC map shows the solid component shows increased water diffusion (ADC value = 1.32 × 10− 3 mm2 /s)Back to article page