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Contents

Unusual biclonal IgA plasma cell myeloma with aberrant expression of high-risk immunophenotypes : first report of a new diagnostic and clinical challenge / Carlos A. Monroig-Rivera ; Clara N. Finch Cruz 1

[요약] 1

CASE REPORT 1

DISCUSSION 2

Author Contributions 5

References 6

초록보기

IgA plasma cell myeloma (PCM) has been linked to molecular abnormalities that confer a higher risk for adverse patient outcomes. However, since IgA PCM only accounts for approximately 20% of all PCM, there are very few reports on high-risk IgA PCM. Moreover, no such reports are found on the more infrequent biclonal IgA PCM. Hence, we present a 65-year-old Puerto Rican female with acute abdominal pain, concomitant hypercalcemia, and acute renal failure. Protein electrophoresis with immunofixation found high IgA levels and detected a biclonal IgA gammopathy with kappa specificity. Histomorphologically, bone marrow showed numerous abnormal plasma cells (32%) replacing over 50% of the marrow stroma. Immunophenotyping analysis detected CD45-negative plasma cells aberrantly expressing CD33, CD43, OCT-2, and c-MYC. Chromosomal analysis revealed multiple abnormalities including the gain of chromosome 1q. Thus, we report on an unusual biclonal IgA PCM and the importance of timely diagnosing aggressive plasma cell neoplasms.

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Unusual biclonal IgA plasma cell myeloma with aberrant expression of high-risk immunophenotypes : first report of a new diagnostic and clinical challenge Carlos A. Monroig-Rivera, Clara N. Finch Cruz p. 132-137

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참고문헌 (18건) : 자료제공( 네이버학술정보 )

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번호 참고문헌 국회도서관 소장유무
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