PMC6375731_01
Posteroanterior chest X-ray showed increase in density in the lower zone of the right hemithorax .
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Posteroanterior chest X-ray revealed pleural effusion in the lower right hemithorax ( Fig. 1 ).
Computed tomography (CT) showing pleural thickening in the right hemithorax and pleural effusion.
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 Computed tomography (CT) and positron emission tomography/CT (PET-CT) revealed pleural effusion and thickening, with a high maximum standard uptake value of 10.4 in the right hemithorax ( Fig. 2 ).
Biopsy specimen of the lower right parietal pleura. Megakaryocytes (hematoxylin and eosin staining; original magnification: x 40).
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Definite pathology was reported as follicular lymphoma ( Fig. 3 ), and the patient was referred to the Hematology Department for further treatment.