Calcineurin inhibitors-related posterior reversible encephalopathy syndrome in liver transplant recipients: Three case reports and review of literature

Figure 1 Cranial magnetic resonance imaging findings in patients monitored long-term (2016–2019). A: On June 15^th, 2016 [postoperative day (POD) 9], the cerebral magnetic resonance imaging (MRI) showed ischemic lesions in the bilateral frontal lobes, without noticeable white matter involvement; B: On June 27^th, 2016 (POD 22), the MRI revealed a linear high signal in the left posterior parietal region on diffusion-weighted imaging and patchy high signals in the white matter and pons around both sides of the ventricles in fluid attenuated inversion recovery sequences; C: On August 12^th, 2016 (POD 66), the MRI continued to show abnormal signals in the white matter surrounding the bilateral ventricles, with low signal intensity on T1-weighted images and slightly elevated signal intensity on T2-weighted images; D: On May 11^th, 2018, the MRI still displayed abnormal signals in the white matter around the bilateral ventricles, with low signal intensity on T1-weighted images and slightly elevated intensity on T2-weighted images; E: On May 23^th, 2019, the MRI showed no significant abnormalities in the white matter on T1-weighted and T2-weighted images.