High-resolution magnetic resonance cerebrovascular imaging findings in a brainstem stroke patient with neuro-syphilis and HIV infection

Figure 1.A. Axial diffusion-weighted image revealed a restricted water diffusion lesion in the left medulla oblongata (red arrow). B. Magnetic resonance angiography disclosed no abnormality. (C) 3T-coronal HRMR views of T1-weighted image demonstrate vessel wall with strong smooth, concentric wall enhancement and thickening of the terminal segment of left BA. (D) 3T-Axial HRMR of T1-weighted image also showed eccentric wall thickening and mild enhancement of the M3 segment of the left MCA.