Polyploid karyotypes in diffuse large B-cell lymphoma (DLBCL) are rare and carry a poor prognosis. Extranodal polyploid lymphoma is uncommon. A 71-year-old man with back pain was found to have ileal intussusception. He underwent surgical resection and was diagnosed with DLBCL with a near-tetraploid karyotype. Despite rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone therapy, he developed recurrent disease for which he started a clinical trial. He then developed dark stools from an ileal ulcer due to progressive disease and died 2 weeks later. This is the first reported case of gastrointestinal DLBCL with polyploidy. These karyotypes require attention to extranodal disease and prompt initiation of therapy.
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| http://dx.doi.org/10.14309/crj.0000000000000131 | DOI Listing |
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