The objective of the investigator's study is to detect the characteristics, pattern and outcome of pulmonary tuberculosis patients treated at Assiut University Hospital by collecting their demographic, clinical, laboratory and radiological data.

Tuberculosis (TB) is a problem of global importance, it is a medical, social and economic disaster of immense magnitude that is occurring over the world

TB remains one of the major health risks associated with morbidity and mortality. Worldwide, about 10 million TB cases have been reported in 2017, and about 1.57 million cases have died The estimated global average risk of infection is 1%, implying approximately 38 million new infections per year among the previously uninfected population .

In Egypt ,researchers have found evidences of tuberculosis in the Egyptian mummies dating from 3000 to 2400 Before Christ and WHO reported that TB is the most important public health problem after hepatitis C , TB disease can affect any organ, but most commonly occurs in the lungs (70%-80%). Pulmonary TB is the most important form of TB infection, because an infection of the lungs is highly contagious due to the mode of droplet transmission .

Patients with TB usually manifest diverse signs and symptoms that vary with age, sex and the associated socio-environmental as well as host factors .

Inclusion Criteria:

• All pulmonary tuberculosis adult patients (age ≥ 18 years) who will attend the outpatient clinic of Chest Department at Assiut University Hospital during 2019 - 2020.

Exclusion Criteria:

• Patients less than 18 ys. loss of patient follow-up . extrapulmonary tuberculosis.

adult patients (age ≥ 18 years) who will attend the outpatient clinic of Chest Department at Assiut University Hospital during 2019 - 2020.

- All pulmonary tuberculosis adult patients (age ≥ 18 years) who will attend the outpatient clinic of Chest Department at Assiut University Hospital during 2019 - 2020.