Yücel A.E.Çalguneri M.Ruacan Ş.2024-08-042024-08-0419960770-3198https://doi.org/10.1007/BF02229711https://hdl.handle.net/11616/90699A 23-year-old female with systemic lupus erythematosus is reported. The clinical features included fever, shortness of breath, lymphadenopathies, hepatosplenomegaly, pleural and pericardial fluids, ANA and Anti-DNA positivity. Pleural biopsy was false positive for malignancy on two occasions. High CA125 levels were detected in both serum and pleural fluid. Following prednisolone treatment, clinical and laboratory findings returned to normal.eninfo:eu-repo/semantics/closedAccessCA125False Positive Pleural BiopsySystemic Lupus ErythematosusArticle153295297879326410.1007/BF022297112-s2.0-0029890182Q2