AUTHOR=Chen Shuangyan , Yan Lanfang , Mo Yinjuan , Zhou Daoyin , Chen Yan 

TITLE=Case Report: Unveiling the role of genetic abnormalities in myelomatous pleural effusion: a case of IgG lambda-type multiple myeloma

JOURNAL=Frontiers in Oncology

VOLUME=Volume 15 - 2025

YEAR=2025

URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2025.1554956

DOI=10.3389/fonc.2025.1554956

ISSN=2234-943X

ABSTRACT=A 73-year-old male with a history of multiple myeloma presented with progressively worsening left shoulder pain that was unresponsive to conservative management. Following comprehensive diagnostic procedures, including imaging and genetic testing, he was diagnosed with IgG lambda-type multiple myeloma, complicated by the development of myelomatous pleural effusion (MPE). The patient’s treatment regimen consisted of the PDD chemotherapy combination, including Bortezomib, Doxorubicin, and Dexamethasone, alongside adjunctive therapies aimed at controlling the pleural effusion. Post-treatment evaluation revealed resolution of the pleural effusion, with no detectable myeloma cells in the pleural fluid. This case illustrates the clinical utility of combining chemotherapy with supportive treatments for the effective management of MPE in multiple myeloma patients. The patient’s positive response highlights the significance of tailoring therapeutic approaches to the individual, emphasizing the role of personalized care in improving clinical outcomes in similar complex cases of MPE.