My Son Got Primary Complex When He Was 4 Yrs

My son got primary complex when he was 4 yrs old.. Rigth now i have ptb.. So we decided to make an xray on him he is 12yrs old now.. The result is hilar lymphadenopathies with right hilar cavitation, suggestive primary koch's infection.. Is it posible that it is mark from his previous primary complex when he was a child..