Amsalu BitewuHiwot Workineh2026-06-222026-06-222025-04-05https://etd.aau.edu.et/handle/123456789/8447Pleural Effusion (PE) is a condition associated with significant mortality and morbidity, with varying etiologies. Etiologies of PE are influenced by geography, patient age, and time trends. The variations in etiologies of PE according to time necessitate the need to investigate the current trends of pleural effusion in TASH.en-USETIOLOGY OF PLEURAL EFFUSIONSThesis