Tuberculosis

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TB Diagnosis


Tuberculosis diagnosis essentially depends on isolating the bacteria from tissue. Chest x-ray reveals cavitation, calcification (healed disease), and nodes in the upper lobes, but cannot confirm the diagnosis. Granulomas with caseation obtained in biopsy indicate the diagnosis, but if caseation is not present, other possible diagnoses include sarcoidosis and lymphoma.

Sputum smears and cultures are useful in diagnosing pulmonary tuberculosis Usually, three early morning ...Read the full article