[Follicular lymphoma associated with t(14;18)(q32;q21) chromosome translocation and bcl-2 gene rearrangement: report of a case].
A 31-year-old Japanese male who complained of low-grade fever, fatigue and generalized lymphadenopathy had shown an increase in peripheral white cell count, and 84% of peripheral blood cell and 76% of nuclear bone marrow cells consisted of small cleaved lymphoblastic abnormal cells with or without barely visible nucleoli. Cytogenic study of cervical lymph node biopsy specimens showed a t(14;18)(q32;q21) chromosome translocation. Histologically the lymph node cells were classified according to the International Working Formulation as follicular small cleaved-cell lymphoma. Molecular analysis of DNA fragments of peripheral lymphocytes revealed both J-H gene and bcl-2 oncogene rearrangements. Immunophenotypes of peripheral lymphocytes, bone marrow cells and lymph node cells expressed a clonally distinct B-cell population bearing surface immunoglobulin-G, kappa-chain, CD-10, CD-19, CD-20, CD-21 and OKIa-1 antigens. We diagnosed this case as follicular lymphoma in the leukemic phase,
Nagai
T
T
Hokkaido Prefectural Sapporo Kitano Hospital.
Koyama
R
R
Sasagawa
Y
Y
Matsumoto
S
S
Kohgo
Y
Y
Niitsu
Y
Y
Konn
S
S
D000328:Adult; D002883:Chromosomes, Human, Pair 14; D002887:Chromosomes, Human, Pair 18; D015321:Gene Rearrangement; D006801:Humans; D007621:Karyotyping; D008224:Lymphoma, Follicular / Q000235:genetics*; D008297:Male; D011518:Proto-Oncogene Proteins / Q000235:genetics*; D019253:Proto-Oncogene Proteins c-bcl-2; D014178:Translocation, Genetic
D011518:Proto-Oncogene Proteins; D019253:Proto-Oncogene Proteins c-bcl-2