In the stage of Grey hepatisation, which of the following is a finding? (AIIMS May 2014)
|A||WBC's fill the alveoli|
|B||RBC's fill the alveoli|
|C||Organisms fill the alveoli|
|D||Accumulation of fibrin|
Cavitation when there has been a previous sensitization of the host resulting in caseous necrotic material being Present which is discharged through the cavities. so, it is associated with secondary tuberculosis more frequent. caseous granuromas with murtinuclear giant cells are present in both primary and secondary tuberculosis'