What Does No Significant Interval Change In Both Upper Lobe Opacities Mean?

Good day. The result of the comparison of my mom s xray is there is no significant interval change in the both upper lobe opacities. There were three xray result, the first one was impression is minimal kochs. Then the second was shows no significant change. Then the third shows hazy opacities in both upper lobes. So we ve compared the three xray to the radiologist and the result was no significant interval change in both upper lobe opacities what does it mean? Does it mean my mom got PTB again?