Abstract: |
We present a case of diffuse large B-cell lymphoma CD5 negative, Cyclin D1 positive presenting as ruptured spleen in a 63-year-old man requiring emergent splenectomy. Tumor cells showed marked pleomorphism, anaplasia, and increased mitotic figures with positive Cyclin D1, BCL6, MUM1, P53, and a high MIB1 proliferative fraction. The patient received multiple therapies and ultimately died. This case raises the differential diagnoses of pleomorphic mantle cell lymphoma and other aggressive lymphomas with pleomorphic, anaplastic, and Reed-Sternberg-like cells. © 2009 Lippincott Williams & Wilkins, Inc. |
Keywords: |
adult; cancer chemotherapy; human tissue; middle aged; prednisone; splenectomy; case report; doxorubicin; rituximab; positron emission tomography; antineoplastic agent; ki 67 antigen; carboplatin; bortezomib; computer assisted tomography; mantle cell lymphoma; multiple cycle treatment; diagnosis, differential; ubiquitin protein ligase; etoposide; antineoplastic combined chemotherapy protocols; differential diagnosis; cyclophosphamide; vincristine; protein p53; ifosfamide; b cell lymphoma; splenomegaly; tumor suppressor protein p53; large cell lymphoma; lymphoma, large b-cell, diffuse; cyclin d1; rupture, spontaneous; fatal outcome; cd5 antigen; ubiquitin-protein ligases; lymphadenopathy; anaplastic carcinoma; spleen rupture; splenic rupture; cd5 negative; cyclin d1-positive dlbcl; pleomorphic mantle cell lymphoma; mib1 protein, human; fatality; rupture; antigens, cd5
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