Pulmonary Tuberculosis (TB) is an infectious disease caused by bacteria that primarily affects the lungs. It spreads through the air when an infected person coughs, sneezes, or speaks. TB can be serious if not treated, leading to significant lung damage and potentially spreading to other parts of the body.
Pulmonary tuberculosis (PTB) is a chronic infectious disease caused by *Mycobacterium tuberculosis*, typically affecting the lungs. It is characterized by granulomatous inflammation and can manifest as active disease or latent infection, with reactivation posing a significant public health challenge.
| Condition | Distinguishing Feature |
|---|---|
| Bacterial Pneumonia | Typically presents with more acute onset of fever, purulent sputum, and lobar consolidation on imaging; often responds rapidly to antibiotics. |
| Fungal Pneumonia | May present with similar symptoms but often occurs in immunocompromised individuals or endemic areas; diagnosis relies on fungal stains and cultures. |
| Lung Cancer | Can cause chronic cough, weight loss, and hemoptysis, but often presents as a discrete mass or nodule on imaging and may have other paraneoplastic syndromes. |
| Sarcoidosis | Presents with bilateral hilar lymphadenopathy and interstitial lung disease, but typically lacks caseating granulomas and systemic symptoms like night sweats and hemoptysis. |
| Bronchiectasis | Characterized by chronic cough with copious purulent sputum and recurrent infections, but imaging shows dilated airways rather than infiltrates or cavities. |
| Non-tuberculous Mycobacterial (NTM) Infection | Symptoms can overlap with TB, but NTM infections are more common in patients with underlying lung disease and require specific culture identification. |
Management of pulmonary tuberculosis involves a multi-drug, directly observed therapy (DOT) regimen for at least six months, guided by drug susceptibility testing. Treatment aims to cure the infection, prevent transmission, and minimize the risk of drug resistance.