ABSTRACT CORRELATION BETWEEN CLINICAL CHARACTERISTICS AND ETIOLOGY ON CYTOLOGICAL EXAMINATION OF PATIENTS WITH PLEURAL EFFUSION AT ANATOMICAL PATHOLOGY DEPARTMENT OF RSUP DR. MOHAMMAD HOESIN PALEMBANG (Natasha Yosefany Marsinta Hutagalung, Medical Faculty of Sriwijaya University) Background: Pleural effusion is an excessive accumulation in the pleural cavity that can be caused by changes in hyd…