Chronic Lymphocytic Inflammation with Pontine Perivascular Enhancement Responsive to Steroids, with Cranial and Caudal Extension

Figure 1

(a) Axial T2/FLAIR and (b) axial and sagittal (c) T1 weighted MRI after IV gadolinium based contrast medium injection, showing ill-defined faint bright intensity in the posterior pons and left brachium pontis (arrow in (a)) and characteristic punctate and linear enhancement (arrow in (b) and (c)).

(a)

(b)

(c)