Patients with no corresponding clinical symptoms of TB, such as fever, night sweats, cough, sputum, haemoptysis and weight loss, negative bacteriological examination, mostly found during physical examination, young patients with no previous history of TB; or young patients with a previous history of TB, after standardised treatment, with imaging consistent with one or more of the following manifestations and excluding other causes of pulmonary imaging changes can be diagnosed with old TB : a
calcified lesions.
Solitary lesions (with clear margins).
hard nodular lesions.
purulent cavities.
Pleural thickening, adhesions or with calcification.