Figure 6: (a) Contrast enhanced MR scan; (b) T2-weighted scan of case 7 showing a ring enhancing lesion in the cerebellar vermis; (c) plain CT scan, axial section showing complete excision of the vermian TBA after performing a suboccipital craniectomy; (d) contrast enhancing CT scan, axial section of case 9 showing multiple left frontal ring lesions with significant cerebral edema; (e) contrast enhanced MR scan, axial section, showing significantly more number of TBAs, which were not obvious on the CT scan images seen in Figure d; and, (f) excised surgical specimen of TBA showing the thick abscess wall