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tum or culture in Lowenstein Jensen medium before starting anti tuberculous chemotherapy. radiography. . lung biopsy. COMPANY LOGO Tuberculoma of lung COMPANY LOGO Lymph nodes of Tuberculosis COMPANY LOGO COMPANY LOGO COMPANY LOGO COMPANY LOGO COMPANY LOGO ? Indications of surgery: lesion on chest radiograph in w hich neoplasm can not be excluded. tuberculous abscess, resistant to chemotherapy. within a tuberculous cavity. haemoptysis. diagnosis. COMPANY LOGO Abscess ? Abscesses (necrosis infection)in the lung. ? Formation of cavities containing necrotic debris or fluid. ? Underlying infection causes thrombosis of segmental artery and vein: tissue necros is. ? Common: secondary to a chronic upper r espiratory tract infection (sinusitis, dental abscess) or bronchial obstruction from n eoplasm. COMPANY LOGO Causes of lung abscess ? Specific pneumonia: streptococcal, stap hylococal, pneumococcal and anaerobic. ? Bronchial obstruction: carcinoma, carci noid, intramural foreign body, postoper ative atelectasis. ? Chronic respiratory sepsis: sinusitis, to nsillitis, dental infection. ? Septicaemia. ? Perating lung injury. COMPANY LOGO COMPANY LOGO COMPANY LOGO COMPANY LOGO COMPANY LOGO COMPANY LOGO Abscess ? Acute abscess: : high dosage and prolonged pe riod。 drainage。 is not usually part of the treatment. ? Surgery indication: abscess。 of medical treatment. COMPANY LOGO COMPANY LOGO