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Figure 1: At the time of initial diagnosis, the normal cranial computed tomography is shown (a). One and a half month later, there is a paradoxical worsening in imaging, as evidenced by optochiasmatic arachnoiditis and left perimesencephalic tuberculoma (b), infarct in the left basal ganglia and thalamus extending upto the posterior limb of internal capsule (c), and computed tomography angiogram showing the narrowed A1 segmment of the left anterior cerebral artery and P1 segment of the left posterior cerebral artery, along with increased collaterals in the posterior circulation (d)

Figure 1: At the time of initial diagnosis, the normal cranial computed tomography is shown (a). One and a half month later, there is a paradoxical worsening in imaging, as evidenced by optochiasmatic arachnoiditis and left perimesencephalic tuberculoma (b), infarct in the left basal ganglia and thalamus extending upto the posterior limb of internal capsule (c), and computed tomography angiogram showing the narrowed A1 segmment of the left anterior cerebral artery and P1 segment of the left posterior cerebral artery, along with increased collaterals in the posterior circulation (d)