tokens: RESULTS : Despite similar external diameters among CaCl ( 2 ) - treated , non - CaCl ( 2 ) - treated and NaCl - treated segments , aneurymal alteration ( n = 6 , 50 % ) , media degeneration with regional disruption , fragmentation of elastic fiber , and increased collagen deposition ( n = 12 , 100 % ) were demonstrated in CaCl ( 2 ) - treated segments .