CMA1 and posterior cortical atrophy: Similar to our observations with mast cell tryptase labeling, pain in PCa and CP was associated with greater relative amounts of chymase-immunoreactive perineural mast cells [PCaP:8.73% (2.53; 16.82) and CPP: 3.70% (0.10; 41.26)] than pain-free PCa and CP [PCaN:0.75% (0.04; 8.71) and CPN: 0.65% (0.01; 7.87), p<0.05, Figure 6B].