The aim of this study is to evaluate the role of procalcitonin in bronchoalveolar lavage as a biomarker for assessment of severity of non-CF bronchiectasis in children in correlation with other markers (functional and radiological severity )
Children of both sex
Children aged from 6-17 years old.
Documented diagnosis of non-CF bronchiectasis by confirmed bronchiectasis findings using high-resolution computed tomographic (HRCT) lung scanning, and clinical symptoms consistent with bronchiectasis with a negative sweat test
Age less than 6 years or more than 17 years.
Children Diagnosed with cystic fibrosis bronchiectasis with confirmed positive sweat chloride test(6).
If there was a history of a recent exacerbation during the previous month preceding the study.