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@article{180676,
        author = {Dr. Tarun sai Adapala and dr. E. Sireesha and dr. K. Siva prasad and Dr. R. Siddeswari},
        title = {A STORY OF HYPERSENSITIVITY PNEUMONITIS MISDIAGNOSED REPEATEDLY AS ACUTE BRONCHITIS},
        journal = {International Journal of Innovative Research in Technology},
        year = {2025},
        volume = {12},
        number = {1},
        pages = {2112-2115},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=180676},
        abstract = {Hypersensitivity Pneumonitis (HP) is a rare 
interstitial lung disease caused by repeated exposure to 
environmental antigens, often misdiagnosed due to its 
nonspecific symptoms and radiological features. We 
report the case of a 19-year-old female with recurrent 
episodes of cough and dyspnea, repeatedly treated for 
acute bronchitis without improvement. High
resolution CT revealed diffuse ground-glass opacities 
with centrilobular nodules, and bronchoalveolar 
lavage showed lymphocytic alveolitis with a decreased 
CD4/CD8 ratio (0.38), confirming the diagnosis of HP. 
This case highlights the critical need for detailed 
exposure history, early imaging, and immunologic 
analysis to differentiate HP from common airway 
diseases. Prompt diagnosis and antigen avoidance are 
essential to prevent progression to chronic fibrotic 
forms and improve patient outcomes.},
        keywords = {Acute  Bronchoalveolar  Lavage,  Bronchitis  CD4/CD8  Mimic,  Ratio,  Environmental Antigen Exposure, Ground Glass  Opacities,  HRCT  Pneumonitis,  Thorax,  Hypersensitivity  Immune-Mediated Lung Disease,  Interstitial Lung Disease, Misdiagnosis.},
        month = {June},
        }