Mirlekar K, Saraf M, Sarage A, Isolation of Burkholderia cepacia Complex from Pericardial Fluid in a Patient with Lung Adenocarcinoma with Metastasis: A Rare Case Report, International Journal of Clinical Microbiology, Volume 1, Issue 4, 2026, Pages 8-12, ISSN 2690-4721, https://doi.org/10.14302/issn.2690-4721.ijcm-26-6132. (https://www.oap-journals.net/international-journal-of-clinical-microbiology/article/isolation-of-burkholderia-cepacia-complex-from-pericardial-fluid-in-a-patient-with-lung-adenocarcinoma-with-metastasis-a-rare-case-report-2379) Abstract: Burkholderia cepacia complex was isolated from pericardial fluid in a patient with metastatic lung adenocarcinoma, representing a rare opportunistic pericardial infection. Clinical improvement following targeted antimicrobial therapy supported its pathogenic significance and highlights the importance of microbiological evaluation of malignant pericardial effusions. Keywords: Burkholderia cepacia complex; pericardial fluid infection; lung adenocarcinoma metastasis; opportunistic infection; malignant pericardial effusion