Primary effusion anaplastic large cell lymphoma with indolent clinical course and IRF4/DUSP22 rearrangement: a case report expanding the spectrum of effusion-based lymphoma

Effusion-based lymphomas arising from pleural cavities are mostly B cell lymphomas. Non-B cell origins are very rare. These non-B cell lymphomas are usually disseminated and aggressive, and their underlying genetic changes are indeterminate. Here, we reported the first case of primary effusion anapl...

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