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case_images: Peripheral blood smears (A) and electron microscopic examination (B) show atypical lymphocytes with partially hairy projections and abundant irregularly shaped cytoplasms. No ribosome-lamella complex was found.
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case_images: Peripheral blood smears and electron microscopic examination found that these atypical lymphocytes had irregularly shaped abundant cytoplasms with partially hairy projections (Figure 1).
case_images: Detection of immunoglobulin heavy chain (IGH) gene recombinations using multiplex polymerase chain reaction (PCR) using a tube A primers set (VH FR1) and one consensus primer (JH) in accordance with the BIOMED-2 protocol. Many different IGH PCR products without a monoclonal peak were detected.
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case_images: Multiplex PCR analysis using the three sets of VH primers and one JH consensus primer as specified for the BIOMED-2 primer sets showed no monoclonal peak of IGH gene recombination (Figure 2).