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Lymphoproliferative disorder in pleural effusion in a subject with past asbestos exposure
Naofumi Hara1, Nobukazu Fujimoto2, Yosuke Miyamoto1
1Department of Respiratory Medicine, Okayama Rosai Hospital, Okayama, Japan.
Abstract:
Primary effusion lymphoma (PEL) is a subtype of non-Hodgkin lymphoma that presents as serous effusions without detectable masses or organomegaly. Here we report a case of PEL-like lymphoma in a patient with past asbestos exposure. A 65-year-old man was referred to our hospital due to dyspnea upon exertion. He had been exposed to asbestos for three years in the construction industry. Chest X-ray and CT images demonstrated left pleural effusion. Cytological analysis of the pleural effusion revealed large atypical lymphocytes with distinct nuclear bodies and high nucleus-to-cytoplasm ratio. Immunohistochemical analyses showed that the cells were CD20(+), CD3(-), CD5(-), and CD10(-). These findings led to a diagnosis of diffuse large B-cell lymphoma. PEL or PEL-like lymphoma should be considered a potential cause of pleural effusion in subjects with past asbestos exposure.
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