Azemera GissilaAlemu Natnael2025-08-132025-08-132024-01-23https://etd.aau.edu.et/handle/123456789/6633Idiopathic interstitial pneumonias are widespread interstitial lung diseases with no known cause. The diseases are characterized by a steady decline in dyspnea and lung function.en-USINTERSTITIAL PNEUMONIA PATTERNSIdiopathic Interstitial Pneumonia Patterns and Correlation with Spirometry Studies in Tikur Anbessaspecialized Hospital, Addis Ababa, EthiopiaThesis