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DM Mintzer, M Andreeff, DA Filippa, SC Jhanwar, RS Chaganti and B Koziner
Histologic conversion of nodular lymphomas to more aggressive patterns has
been well described and occurs in 15% to 40% of cases. Most conversions
have involved changes from nodular to diffuse patterns and often from small
to larger cell types. Conversions to undifferentiated lymphomas, but not
specifically to the Burkitt's type, have infrequently been described. This
report describes three cases of nodular poorly differentiated lymphocytic
lymphoma that converted to a Burkitt's-like lymphoma. Conversion was
associated with short survivals, increasing lactate dehydrogenase (LDH)
levels, and changes in DNA stemline, RNA content, and S-phase values, as
determined by flow cytometry. Karyotypes in two cases revealed a t(14;18).
Surface immunoglobulin could be demonstrated on transformed Burkitt's-like
cells from lymph node in one case, but in none of the cases on cells from
bone marrow.
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| Copyright © 1984 by American Society of Hematology Online ISSN: 1528-0020 | |||||||||