Fig. 1From: ALK-positive anaplastic large cell lymphoma undiagnosed in a patient with tuberculosis: a case report and review of the literatureLarge lymphoma cells in the pericardial effusion. Lymphoma cells vary in size, from 5 to 15 times that of normal erythrocytes. Nuclei are pleomorphic, with some coarse nuclear chromatins and distinct nucleoli. Cytoplasm is faint blue to basophilic with frequent vacuoles (Diff-Quik®, 1000×)Back to article page