The typical honeycomb pattern of APP (+) staining in the superior frontal gyrus of an index case with a history of blast injury (Case 3, Table 1
). (b) and (c) are enlargements of the blocked areas in (a) and (b), respectively. This case had blast exposure 1 year before death and a concussion from assault 2 months prior to death. Note the groups of tens-hundreds of axonal spheroids in the deep white matter of frontal lobe.