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Updated: Jun 23, 2026
Immunoglobulin Gene Sequence Analysis In Chronic Lymphocytic Leukemia: From Patient Material To Sequence Interpretation
Published on: November 26, 2018
Chronic lymphocytic leukemia with paraimmunoblastic transformation - with comparative genomic hybridization and
Shih-Sung Chuang1, Yung-Liang Liao, Chiou-Ping Liou
1Department of Pathology, Chi-Mei Medical Center, Yung-Kang City 710, Tainan County, Taiwan. cmh5301@mail.chimei.org.tw
Abstract:
Richter's transformation (RT) is the development of a high-grade lymphoma in patients with B-cell chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL). We report an extremely rare case with paraimmunoblastic transformation. A 78-year-old Taiwanese male had Rai stage 1 and Binet stage B CLL/SLL involving skin, peripheral blood (PB), and bone marrow (BM) with paraimmunoblastic transformation in the lymph node. Molecular/genomic studies showed the same clonal origin of tumor tissues at various locations with trisomy 12 and a deletion of chromosome 13q14. Interestingly, there seemed to be no additional chromosomal aberrations in the transformed nodal tissue, suggesting that the micro-environment rather than an additional genetic lesion contributed to the transformation. The patient received chemotherapy and was alive with disease after 33.5 months.
