Fig. 1
From: The role of plasma metagenomic sequencing in identification of Balamuthia mandrillaris encephalitis
Initial MRI and surgical biopsy. a Initial axial post-contrast T1-weighted MRI, performed the day after admission, showed a right pontine rim-enhancing lesion (arrow). Right middle cerebellar peduncle biopsy demonstrated b macrophage-rich chronic inflammation (H&E, 20x) with c CD68 stain highlighting numerous macrophages (CD68, 20x). d Rare possible granulomas were identified (H&E, 40x). Scale bars: b, c = 50 µm, d = 20 µm