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Michaux L, Dierlamm J, Wlodarska L, Criel A, Louwagie A, Ferrant A, Hagemeijer A, Van den Berghe H. Trisomy 3q11-q29 is recurrently observed in B-cell non-Hodgkin's lymphomas associated with cold agglutinin syndrome. Ann Hematol 1998; 76:201-4. [PMID: 9671133 DOI: 10.1007/s002770050389] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Three cases of low-grade B-cell non-Hodgkin's lymphoma associated with cold agglutinin syndrome, cytogenetically characterized by partial trisomy 3, are presented in this report. Our data suggest that the long arm of chromosome 3 might be of particular importance in the pathogenesis of this subgroup of lymphomas.
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MESH Headings
- Aged
- Aged, 80 and over
- Anemia, Hemolytic, Autoimmune/complications
- Anemia, Hemolytic, Autoimmune/genetics
- Chromosomes, Human, Pair 3/genetics
- Female
- Humans
- In Situ Hybridization, Fluorescence
- Karyotyping
- Lymphoma, B-Cell/complications
- Lymphoma, B-Cell/genetics
- Lymphoma, Non-Hodgkin/complications
- Lymphoma, Non-Hodgkin/genetics
- Male
- Trisomy/genetics
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152
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Lecouvet FE, Berg BCV, Maldague BE, Malghem J, Michaux L, Lehmann F, Michaux JL, Ferrant A, Jamart J, Laterre E. Dr Lecouvet and colleagues respond. Radiology 1998. [DOI: 10.1148/radiology.206.2.564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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153
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Bonato M, Pittaluga S, Tierens A, Criel A, Verhoef G, Wlodarska I, Vanutysel L, Michaux L, Vandekerckhove P, Van den Berghe H, De Wolf-Peeters C. Lymph node histology in typical and atypical chronic lymphocytic leukemia. Am J Surg Pathol 1998; 22:49-56. [PMID: 9422315 DOI: 10.1097/00000478-199801000-00006] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
According to the French-American-British (FAB) proposal on the classification of chronic lymphoid leukemia (CLL), the disorder can be subdivided into typical and atypical CLL. We recently demonstrated the prognostic significance of this subgrouping and based on these results we suggested that typical and atypical CLL represent two closely related, but different entities. These results prompted us to investigate 42 patients diagnosed with CLL based on the results of lymph node biopsy in order to identify the histologic counterpart of the CLL variants. A first group of 14 cases showed a monomorphic proliferation of small round lymphocytes associated with the occurrence of small pseudofollicles. All these cases were diagnosed as typical CLL on peripheral blood (13 cases) or bone marrow smear (1 case). The remaining 28 cases showed aberrant histologic features characterized by the presence of large numbers of paraimmunoblasts and prolymphocytes, forming very large pseudofollicles, and/or by nuclear irregularities of the neoplastic cells. Based on peripheral blood smears (22 cases) or bone marrow smears (six cases), two cases showed no peripheral blood involvement, 21 cases were diagnosed as atypical CLL, and five as typical CLL. From these data we can conclude that a histologic counterpart of the CLL variants recognized in the FAB proposal does exist; moreover, our data may explain reports on lymph node involvement by CLL composed of small cleaved cells and clarify the occurrence of pseudofollicles in cases described as mantle cell lymphomas.
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154
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Wlodarska I, Pittaluga S, Stul M, Martiat P, Dierlamm J, Michaux L, De Wolf-Peeters C, Cassiman JJ, Mecucci C, Van den Berghe H. Philadelphia-like translocation t(9;22)(q34;q11) found in a follicular lymphoma involving not BCR and ABL but IGL-mediated rearrangement of an unknown gene on 9q34. Genes Chromosomes Cancer 1997; 20:113-9. [PMID: 9331562 DOI: 10.1002/(sici)1098-2264(199710)20:2<113::aid-gcc2>3.0.co;2-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
In a case of follicular center cell lymphoma (FCCL) without evidence of histologic progression towards a high-grade lymphoma, t(9;22)(q34;q11) was found simultaneously with a t(14;18)(q32;q21) and a t(8;14)(q24;q32). Molecular studies of this case showed BCL2 and MYC rearrangements in addition to the rearrangements of immunoglobulin heavy (IGH) and lambda (IGL) loci. Investigation of the t(9;22) using Southern blot and RT-PCR analysis failed to detect M-bcr or m-bcr rearrangements of BCR. Two-color fluorescence in situ hybridization (FISH) with ABL and BCR probes revealed presence of a "fusion" signal, but its atypical localization [der(9)] and gene order [cen-ABL-BCR-tel] indicated that this translocation differed from the t(9;22) in chronic myeloid leukemia and did not involve either ABL or BCR. In addition, further FISH analysis using 9q34- and 22q11-specific probes localized the breakpoint on chromosome 9 distal to the NOTCH1 gene and the breakpoint on 22q11 in the IGL gene cluster. These results indicate an IGL-mediated rearrangement of an unknown gene at 9q34 that together with BCL2 and MYC might be involved in the lymphomagenesis of the present case of FCCL and perhaps in other cases of non-Hodgkin lymphoma in which t(9;22) is sporadically occurring.
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MESH Headings
- Blotting, Southern
- Chromosome Banding
- Chromosomes, Human, Pair 22/genetics
- Chromosomes, Human, Pair 9/genetics
- Gene Rearrangement
- Genes, abl
- Humans
- Immunoglobulin Heavy Chains/genetics
- Immunoglobulin lambda-Chains/genetics
- In Situ Hybridization, Fluorescence
- Karyotyping
- Lymphoma, Follicular/genetics
- Lymphoma, Follicular/pathology
- Male
- Middle Aged
- Multigene Family
- Polymerase Chain Reaction
- Translocation, Genetic/genetics
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155
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Dierlamm J, Wlodarska I, Michaux L, Vermeesch JR, Meeus P, Stul M, Criel A, Verhoef G, Thomas J, Delannoy A, Louwagie A, Cassiman JJ, Mecucci C, Hagemeijer A, Van den Berghe H. FISH identifies different types of duplications with 12q13-15 as the commonly involved segment in B-cell lymphoproliferative malignancies characterized by partial trisomy 12. Genes Chromosomes Cancer 1997; 20:155-66. [PMID: 9331566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Clinical, cytogenetic, fluorescence in situ hybridization (FISH), and Southern blot data of 18 patients with different subtypes of B-cell non-Hodgkin's lymphoma, cytogenetically characterized by partial trisomy 12, are presented. These chromosomal changes occurred predominantly in clinically progressive chronic lymphocytic leukemia, mixed cell type, and advanced-stage follicle center cell lymphoma at the time of relapse or transformation into diffuse large cell lymphoma. Partial trisomy 12 consistently included the long arm of chromosome 12, either completely or partially, and resulted from dup(12q) or other rearrangements involving chromosome 12. The duplications were cytogenetically identified as dup(12)(q13q23), dup(12)(q13q22), or dup(12)(q13q15) in follicle center cell lymphoma or t(14;18)-positive diffuse large cell lymphoma; dup(12)(q13q22) or dup(12)(q13q24) in chronic lymphocytic leukemia; and dup(12)(q13q21) in a case of t(14;18)-negative diffuse large cell lymphoma. FISH, using library probes and a panel of YAC probes, mapped along the long arm of chromosome 12, confirmed the cytogenetic results in all cases analyzed except for three cases of t(14;18)-positive follicle center lymphoma or diffuse large cell lymphoma with dup(12q). In these cases, FISH showed similar, possibly identical, duplications, which involved a region more centromeric (12q11-21) than assumed by karyotypic analysis (12q13-22 or 12q13-23) and included alphoid DNA sequences, a combination hitherto unknown. In addition, commonly duplicated regions of chromosome 12 could be defined: 12q11-21, including alphoid DNA sequences for follicle center cell lymphoma or t(14;18)-positive diffuse large cell lymphoma, 12q13-22 for chronic lymphocytic leukemia, and 12p13-q15 for marginal zone cell lymphoma, all of which overlapped in 12q13-15. Whether these regions, especially 12q13-15, may contain genes which are important in malignant transformation or disease progression of B-cell lymphoproliferative malignancies characterized by complete or partial trisomy 12 remains to be determined.
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156
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Dierlamm J, Wlodarska I, Michaux L, Vermeesch JR, Meeus P, Stul M, Criel A, Verhoef G, Thomas J, Delannoy A, Louwagie A, Cassiman JJ, Mecucci C, Hagemeijer A, Van den Berghe H. FISH identifies different types of duplications with 12q13-15 as the commonly involved segment in B-cell lymphoproliferative malignancies characterized by partial trisomy 12. Genes Chromosomes Cancer 1997. [DOI: 10.1002/(sici)1098-2264(199710)20:2<155::aid-gcc6>3.0.co;2-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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157
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Dierlamm J, Pittaluga S, Stul M, Wlodarska I, Michaux L, Thomas J, Verhoef G, Verhest A, Depardieu C, Cassiman JJ, Hagemeijer A, De Wolf-Peeters C, Van den Berghe H. BCL6 gene rearrangements also occur in marginal zone B-cell lymphoma. Br J Haematol 1997; 98:719-25. [PMID: 9332330 DOI: 10.1046/j.1365-2141.1997.2703087.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Marginal zone B-cell lymphoma (MZBCL) represents a distinct subtype of B-cell non-Hodgkin's lymphoma (NHL) which has been recently recognized and defined as a disease entity. Cytogenetically, these lymphomas reveal a high prevalence of trisomy 3, and recent data obtained by comparative genomic hybridization indicate that the chromosomal regions 3q21-23 and 3q25-29 might be of particular pathogenetic significance. We identified structural chromosomal abnormalities involving the region 3q27 and rearrangements of the BCL6 proto-oncogene in three out of 34 (9%) well-defined cases of extranodal, nodal and splenic MZBCL using cytogenetic analysis. Southern blot, and fluorescence in situ hybridization (FISH). All three cases were characterized by a t(3;14)(q27;q32). Two of them showed additional chromosomal abnormalities including trisomy 3, which was found in one case. The patients displayed extranodal disease and did not demonstrate any striking clinical and histological differences when compared with MZBCL lacking BCL6 rearrangement. The present study for the first time demonstrates the occurrence of t(3;14)/BCL6 gene rearrangement in MZBCL, thus suggesting a role of the BCL6 proto-oncogene in the pathogenesis of MZBCL.
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158
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Lecouvet FE, Vande Berg BC, Michaux L, Schmitz PJ, Malghem J, Jamart J, Maldague BE, Ferrant A, Michaux JL. Early chronic lymphocytic leukemia: prognostic value of quantitative bone marrow MR imaging findings and correlation with hematologic variables. Radiology 1997; 204:813-8. [PMID: 9280265 DOI: 10.1148/radiology.204.3.9280265] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
PURPOSE To determine the frequency of abnormal findings from quantitative bone marrow magnetic resonance (MR) imaging in patients with early-stage chronic lymphocytic leukemia, to correlate these findings with clinical parameters, and to compare spontaneous outcome in patients with normal or abnormal MR imaging findings. MATERIALS AND METHODS In 21 patients with Binet stage A (Rai stage 0-I) disease, bulk T1 values of the vertebral bone marrow were determined and correlated with initial clinical, laboratory, histopathologic, and cytogenetic findings and with treatment-free survival. RESULTS Bulk T1 values were normal (< 600 msec) in 14 patients and prolonged in seven. Patients with increased T1 had significantly higher blood (P = .017) and bone marrow (P = .015) lymphocytosis. None of the 14 patients with normal T1 values required specific therapy after a median follow-up of 13 months. Of the seven patients with abnormal T1 values, five required treatment after progression to Binet stage B or C disease at a median of 10 months. CONCLUSION In patients with abnormal quantitative MR imaging findings, treatment-free survival appears to be significantly shorter (P < .001) than in patients with normal MR imaging findings.
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159
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Lecouvet FE, Vande Berg BC, Maldague BE, Michaux L, Laterre E, Michaux JL, Ferrant A, Malghem J. Vertebral compression fractures in multiple myeloma. Part I. Distribution and appearance at MR imaging. Radiology 1997; 204:195-9. [PMID: 9205246 DOI: 10.1148/radiology.204.1.9205246] [Citation(s) in RCA: 121] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
PURPOSE To study the appearance and distribution of vertebral compression fractures on magnetic resonance (MR) images in patients with multiple myeloma. MATERIALS AND METHODS Two hundred twenty-four vertebral compression fractures were studied on 216 sagittal T1-weighted spin-echo and T2*-weighted gradient-echo MR images of the thoracolumbar spine obtained before and during treatment in 37 patients with multiple myeloma. Vertebral compression fractures observed at diagnosis and during follow-up were determined as being benign- or malignant-appearing at MR imaging according to literature criteria, and their distribution along the spine was recorded. RESULTS One hundred forty-nine (67%) of the 224 vertebral compression fractures appeared benign; 75 (33%) appeared malignant. Of the 37 patients, 14 (38%) had only benign-appearing vertebral compression fractures at diagnosis. One hundred five fractures (87%) were observed between T-6 and L-4, and 112 (50%) occurred between T-11 and L-3. Eight (4%) vertebral compression fractures involved the upper three thoracic vertebrae. CONCLUSION Most vertebral compression fractures in patients with multiple myeloma appear benign at MR imaging, and their distribution is similar to that observed in osteoporotic fractures. The possibility of multiple myeloma should not be excluded in patients with benign-appearing vertebral compression fractures at MR imaging.
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160
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Lecouvet FE, Malghem J, Michaux L, Michaux JL, Lehmann F, Maldague BE, Jamart J, Ferrant A, Vande Berg BC. Vertebral compression fractures in multiple myeloma. Part II. Assessment of fracture risk with MR imaging of spinal bone marrow. Radiology 1997; 204:201-5. [PMID: 9205247 DOI: 10.1148/radiology.204.1.9205247] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
PURPOSE To determine the utility of bone marrow magnetic resonance (MR) imaging in the assessment of risk of vertebral compression fractures in patients with multiple myeloma. MATERIALS AND METHODS In 50 patients with stage III multiple myeloma, 280 MR examinations of the thoracolumbar spine obtained at diagnosis and during treatment (mean follow-up, 28 months) were analyzed to determine MR patterns of bone marrow involvement before treatment and the occurrence of vertebral compression fracture at follow-up. Four MR patterns of marrow involvement were determined: A, normal marrow appearance; B, fewer than 10 focal lesions; C, more than 10 focal lesions; and D, diffuse infiltration. Fracture-free survival was compared according to these patterns. RESULTS During follow-up, 131 vertebral compression fractures appeared in 37 patients. Patients with pattern A (n = 10) or B (n = 16) had significantly longer fracture-free survival before occurrence of the first, second, and third fractures than those with pattern C or D (P < 10(-5)). Relative risks of first, second, and third fracture occurrence for patients with pattern C or D compared with those with pattern A or B were 6.2, 9.1, and 11.0, respectively. CONCLUSION Determination of MR patterns of spinal bone marrow involvement is a potential relevant factor to predict the risk of vertebral fractures in patients with stage III multiple myeloma.
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161
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Criel A, Verhoef G, Vlietinck R, Mecucci C, Billiet J, Michaux L, Meeus P, Louwagie A, Van Orshoven A, Van Hoof A, Boogaerts M, Van den Berghe H, De Wolf-Peeters C. Further characterization of morphologically defined typical and atypical CLL: a clinical, immunophenotypic, cytogenetic and prognostic study on 390 cases. Br J Haematol 1997; 97:383-91. [PMID: 9163605 DOI: 10.1046/j.1365-2141.1997.402686.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We analysed a group of 390 patients, diagnosed with chronic lymphocytic leukaemia (CLL). Cases were subclassified as morphologically typical and atypical CLL according to the criteria of the FAB proposal. Typical CLL cases were mostly diagnosed at a low-risk stage (Binet A/Rai 0), required no immediate treatment and expected a long survival; atypical CLL cases mostly presented at a more advanced risk stage (Binet B/Rai I-II), usually required immediate treatment and their survival was shorter. Moreover, clinical staging was of prognostic significance in typical but not in atypical cases. In typical CLL, del(11q) was the most common chromosomal abnormality (21%) whereas in atypical CLL trisomy 12 was found in about 65% of the cases documented with an abnormal karyotype. Although chromosomal abnormalities were associated with a poor survival in typical CLL, they are of no prognostic significance in atypical CLL. Based on these data, we conclude that subtyping CLL by morphology enables the identification of two groups of cases, each characterized by a specific clinical presentation, different cytogenetic abnormalities and prognostic parameters. We speculate that these two groups may represent two related, but different, diseases with different prognostic parameters and a different survival.
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162
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Dierlamm J, Rosenberg C, Stul M, Pittaluga S, Wlodarska I, Michaux L, Dehaen M, Verhoef G, Thomas J, de Kelver W, Bakker-Schut T, Cassiman JJ, Raap AK, De Wolf-Peeters C, Van den Berghe H, Hagemeijer A. Characteristic pattern of chromosomal gains and losses in marginal zone B cell lymphoma detected by comparative genomic hybridization. Leukemia 1997; 11:747-58. [PMID: 9180302 DOI: 10.1038/sj.leu.2400635] [Citation(s) in RCA: 98] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Marginal zone B cell lymphoma (MZBCL) represents a distinct subtype of B cell non-Hodgkin's lymphoma, which has been recently recognized and defined as a disease entity. We investigated 25 cases (18 at primary diagnosis and seven during the course of disease) of MZBCL by comparative genomic hybridization (CGH) and compared these results with cytogenetic, fluorescence in situ hybridization (FISH), and Southern blot data. Twenty of the 25 cases (80%) showed gains (total 49) or losses (total 15) of genetic material. In extranodal, nodal, and splenic MZBCL, material of chromosomes 3 (52% of cases), 18 (32%), X (24%), and 1q (16%) was most frequently gained, whereas losses predominantly involved chromosomes 17 (16%) and 9 (12%). High-level amplifications involving the regions 18q21-23 and 18q21-22, respectively, were detected in two cases. Gains of chromosomes 1q and 8q and losses of chromosome 17 or 17p occurred more frequently in relapsed or progressive lymphomas. For all of the frequently affected chromosomes, CGH allowed narrowing of the relevant subregions including 3q21-23, 3q25-29 and 18q21-23. By Southern blot analysis, the BCL2, BCL6, and CMYC proto-oncogenes were found to be a part of the over-represented regions in two cases, one case, and two cases, respectively, with gains involving 18q, 3q or 8q. In 13 cases, CGH revealed chromosomal imbalances which were not detected by cytogenetic analysis but could be confirmed by FISH or Southern blot analysis in all cases investigated. On the other hand, CGH failed to detect trisomy 3, trisomy 18, and deletion 7q in three cases with a low proportion of tumor cells bearing these abnormalities, as shown by interphase FISH. The characteristic pattern of chromosomal gains and losses detected in this study confirms the distinct nature of MZBCL and may point to chromosomal regions involved in the pathogenesis of these neoplasms.
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163
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Van den Berghe H, Michaux L. 5q-, twenty-five years later: a synopsis. CANCER GENETICS AND CYTOGENETICS 1997; 94:1-7. [PMID: 9078284 DOI: 10.1016/s0165-4608(96)00350-0] [Citation(s) in RCA: 101] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Twenty-five years have elapsed since the first case of del(5q) was discovered in this laboratory. It was reported in 1974 with other subsequently found cases. As the sole anomaly or together with other chromosome changes, deletions of the long arm of 5 have been found in a large variety of hematologic disorders, but especially in myelodysplastic syndromes (MDS) and in acute myelogenous leukemia (AML). Deletions of 5q are the most frequent chromosome anomaly in therapy-induced myelodysplasia/AML. A clinically distinct entity is the 5q- syndrome in which 5q- is the only change in which female sex prevails. Leukemic transformation is low and survival relatively long. Although the myeloid lineage is predominantly affected in 5q- associated disorders, lymphoid disorders, including 5q- acute lymphoblastic leukemia (B and T) exist and show male predominance. The underlying molecular lesions in 5q- myeloid disorders are still largely unknown. There seems to be a critical segment in 5q31, and preliminary studies suggest the inactivation of one or more genes within that region, deletions of which at the molecular level may be heterogeneous.
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164
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Dierlamm J, Michaux L, Criel A, Wlodarska I, Van den Berghe H, Hossfeld DK. Genetic abnormalities in chronic lymphocytic leukemia and their clinical and prognostic implications. CANCER GENETICS AND CYTOGENETICS 1997; 94:27-35. [PMID: 9078288 DOI: 10.1016/s0165-4608(96)00246-4] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Clonal chromosome abnormalities can be detected in approximately 50% of patients with chronic lymphocytic leukemia (CLL). The most common changes are trisomy 12, followed by structural abnormalities of 13q, 11q, 6q, and 14q. By fluorescence in situ hybridization (FISH), these aberrations can be demonstrated even in cases with insufficient mitotic yield or a normal karyotype. The biologic consequences of trisomy 12 are unknown, but a gene dosage effect is suspected and studies on partial trisomy 12 indicate that the region 12q13 to 12q22 might be of particular pathogenetic importance. Trisomy 12 is strongly associated with atypical lymphocyte morphology and seems to be a secondary event in leukemogenesis, as shown by combined immunophenotyping and interphase FISH. Structural abnormalities of 13q frequently involve hetero- and homozygous deletions of a region in 13q14, distal to the retinoblastoma gene, which may be the site of a tumor suppressor gene. In contrast to a normal karyotype or structural changes of 13q, complex karyotypic abnormalities, high percentage of abnormal metaphases, trisomy 12 and structural changes involving the P53 tumor suppressor gene on 17p13 are adverse prognostic indicators. Cytogenetic and molecular findings provide important diagnostic, clinical, and prognostic information which can contribute to treatment decisions and follow-up of CLL patients.
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MESH Headings
- Chromosome Deletion
- Chromosomes, Human, Pair 11/genetics
- Chromosomes, Human, Pair 12/genetics
- Chromosomes, Human, Pair 13/genetics
- Chromosomes, Human, Pair 14/genetics
- Chromosomes, Human, Pair 17/genetics
- Chromosomes, Human, Pair 6/genetics
- Genes, p53/genetics
- Humans
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Prognosis
- Trisomy/genetics
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165
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Michaux L, Dierlamm J, Wlodarska I, Bours V, Van den Berghe H, Hagemeijer A. t(14;19)/BCL3 rearrangements in lymphoproliferative disorders: a review of 23 cases. CANCER GENETICS AND CYTOGENETICS 1997; 94:36-43. [PMID: 9078289 DOI: 10.1016/s0165-4608(96)00247-6] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The t(14;19)(q32.3;q13.2) is a rare but recurrent translocation found in patients with B-cell malignancies, mainly in chronic B-cell lymphoproliferative disorders. When occurring in chronic lymphocytic leukemia (CLL), atypical lymphocyte morphology and immunophenotype have been reported. A high proportion of patients with CLL and t(14;19) are aged less than 40 years. t(14;19) is often associated with rapidly progressive disease, and overall prognosis is poor compared to the expected survival in chronic lymphocytic leukemia and low-grade B-cell lymphoma. t(14;19) is rarely the sole cytogenetic aberration. Trisomy 12 is the most frequent associated abnormality, and is observed in 50% of cases. t(14;19) involves the BCL3 gene, which is located at the breakpoint on chromosome 19 and is juxtaposed to the immunoglobulin heavy chain gene locus on chromosome 14 (often in the switch alpha region) in a "head-to-head" configuration. The translocation does not interrupt the transcriptional integrity of BCL3, but is associated with overexpression of this gene, which encodes an I kappa B-like protein and modulates the activity of the NF-kappa B transcription factors. The genes affected by overexpression of BCL3 remain to be identified.
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Hernandez JM, Mecucci C, Michaux L, Criel A, Stul M, Meeus P, Wlodarska I, Van Orshoven A, Cassiman JJ, De Wolf-Peeters C, Van den Berghe H. del(7q) in chronic B-cell lymphoid malignancies. CANCER GENETICS AND CYTOGENETICS 1997; 93:147-51. [PMID: 9078299 DOI: 10.1016/s0165-4608(96)00183-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Twelve patients with diagnosis of B-cell non-Hodgkin's lymphoma/leukemia and del[7q] were studied for their clinical, cytogenetic, and molecular characteristics. Eleven patients were classified as small cell lymphoma whereas one had a diffuse large cell lymphoma. Lymphoplasmacytic features were observed in six out of eleven small cell lymphomas. Morphologically and immunologically these small cell lymphomas could be classified as chronic lymphocytic leukemia (typical or atypical; 4 cases), marginal zone lymphoma (splenic lymphoma with villous lymphocytes; 1 case), mantle cell lymphoma (2 cases), or nonspecified, non-Hodgkin's lymphoma (4 cases). Eleven of twelve patients presented with peripheral blood and bone marrow involvement. Two of twelve cases showed del[7q] as the sole anomaly. Two different types of deletions were present: ten cases had del(7)(q21q31) and two cases had del(7)(q31q34). Cases that could be molecularly investigated did not show any involvement of BCL2, BCL3, or BCL6, and only one case had BCL1 rearrangement. The data indicate that del(7q) is associated with a subset of mature small B-cell lymphoproliferative disorders of which some but not all show lymphoplasmatic features.
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167
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Hernández JM, Schoenmakers EF, Dal Cin P, Michaux L, Van de Ven WJ, Van den Berghe H. Molecular delineation of the commonly deleted segment in mature B-cell lymphoid neoplasias with deletion of 7q. Genes Chromosomes Cancer 1997; 18:147-50. [PMID: 9115965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
FISH, using 16 probes, informative for more than 30 different loci, allowed us better to delineate the common deleted region in mature B-cell lymphoid malignancies with deletions of chromosome 7. The region spans about 5 cM and is located between bands 7q31 and 7q32, between loci D7S685 and D7S514.
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168
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Hernández JM, Schoenmakers EFPM, Dal Cin P, Michaux L, Van de Ven WJM, Van den Berghe H. Molecular delineation of the commonly deleted segment in mature B-cell lymphoid neoplasias with deletion of 7q. Genes Chromosomes Cancer 1997. [DOI: 10.1002/(sici)1098-2264(199702)18:2<147::aid-gcc10>3.0.co;2-h] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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169
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Vande Berg BC, Michaux L, Lecouvet FE, Labaisse M, Malghem J, Jamart J, Maldague BE, Ferrant A, Michaux JL. Nonmyelomatous monoclonal gammopathy: correlation of bone marrow MR images with laboratory findings and spontaneous clinical outcome. Radiology 1997; 202:247-51. [PMID: 8988218 DOI: 10.1148/radiology.202.1.8988218] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE To determine the frequency of abnormal bone marrow magnetic resonance (MR) images in patients with nonmyelomatous monoclonal gammopathy and to compare the outcomes in patients with normal and in those with abnormal MR studies. MATERIALS AND METHODS In 37 patients with monoclonal gammopathy of undetermined or borderline significance (19 men, 18 women; aged 28-85 years), MR imaging findings of the vertebral, pelvic, and femoral bone marrow were analyzed and correlated with initial laboratory findings and outcome after a follow-up of 15-60 months (median, 31 months) with no treatment. RESULTS Thirty patients had normal MR studies; none required specific therapy after a median follow-up of 30 months. Seven had either diffuse (n = 4) or focal (n = 3) bone marrow abnormalities. Four required treatment after 15, 20, 50, or 58 months; three did not require treatment after 18, 26, or 40 months. Treatment-free survival curves in patients with normal and in those with abnormal MR studies were statistically significantly different (P = .005). CONCLUSION Bone marrow abnormalities were detected with MR imaging in seven patients (19%) with monoclonal gammopathy of undetermined or borderline significance. All patients with a normal MR investigation still had not required treatment after a median follow-up of 30 months.
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170
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Vande Berg BC, Michaux L, Scheiff JM, Malghem J, Lecouvet FE, Bourgois MP, Ferrant A, Michaux JL, Maldague BE. Sequential quantitative MR analysis of bone marrow: differences during treatment of lymphoid versus myeloid leukemia. Radiology 1996; 201:519-23. [PMID: 8888252 DOI: 10.1148/radiology.201.2.8888252] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
PURPOSE To assess the use of bulk T1 measurements with magnetic resonance (MR) imaging for monitoring treatment response in leukemic patients, with separate analysis of patients with acute lymphoid (ALL) and those with acute myeloid leukemia (AML). MATERIALS AND METHODS Bulk T1 values were determined repeatedly during the first 4 weeks of treatment in 16 patients with ALL (age range, 16-72 years) and the first 6 weeks of treatment in 51 patients with AML (age range, 17-75 years). Bulk T1 values were compared in all patients with AML or ALL and in those who did or did not respond to treatment. RESULTS MR imaging of lumbar bone marrow demonstrated statistically significant differences in initial bulk T1 values and in changes in bulk T1 values during treatment between patients with ALL and those with AML. Changes in bulk T1 after the 2nd week of treatment were statistically significantly different between patients with and those without a response who had ALL but not in those with AML. CONCLUSION Sequential quantitative MR imaging during treatment appears valuable for prediction of response in patients with ALL but not in those with AML. Further investigations are needed to determine what influence MR imaging can have on patient care, but patients with ALL should be analyzed separately from those with AML.
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171
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Van de Berg BC, Lecouvet FE, Michaux L, Labaisse M, Malghem J, Jamart J, Maldague BE, Ferrant A, Michaux JL. Stage I multiple myeloma: value of MR imaging of the bone marrow in the determination of prognosis. Radiology 1996; 201:243-6. [PMID: 8816551 DOI: 10.1148/radiology.201.1.8816551] [Citation(s) in RCA: 82] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
PURPOSE To determine the prognostic value of bone marrow findings at magnetic resonance (MR) imaging in patients with stage I multiple myeloma. MATERIALS AND METHODS In 24 patients with stage I multiple myeloma, findings from MR imaging of the vertebral, pelvic, and femoral bone marrow were analyzed and correlated to spontaneous outcome. Progressive multiple myeloma was observed in 12 patients and stable stage I multiple myeloma was observed in 12 after a follow-up period of 4-67 months (median, 27 months). RESULTS In 17 patients, MR imaging findings were normal, and in seven patients, bone marrow abnormalities were depicted on MR images. Of the 12 patients with progressive multiple myeloma, six had bone marrow abnormalities that were depicted at MR imaging. In the group of patients with progressive multiple myeloma, the six patients with abnormal MR imaging findings showed earlier disease progression (median, 10 months) than the six patients in whom MR imaging findings were normal (median, 32 months) (P < .0001). Multivariate analysis of clinical and MR imaging findings showed that MR imaging (P = .006) were two independent factors in the prediction of disease progression. CONCLUSION MR imaging of the bone marrow in patients with stage I multiple myeloma is an independent factor in the prediction of disease progression.
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172
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Dierlamm J, Wlodarska I, Michaux L, La Starza R, Zeller W, Mecucci C, Van den Berghe H. Successful use of the same slide for consecutive fluorescence in situ hybridization experiments. Genes Chromosomes Cancer 1996; 16:261-4. [PMID: 8875240 DOI: 10.1002/(sici)1098-2264(199608)16:4<261::aid-gcc6>3.0.co;2-w] [Citation(s) in RCA: 77] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The feasibility of using the same slide repeatedly for fluorescence in situ hybridization (FISH) experiments was systematically evaluated by applying standard procedures and various combinations of direct- and indirect-labeled probes to slides from patients with hematologic malignancies. Specific and distinct hybridization signals along with weak background signals and chromosome morphology of good to moderate quality could be obtained in up to three experiments performed consecutively on the same slide. Signals related to biotin- or digoxigenin-labeled probes applied in previous hybridizations were still visible with variable intensity, but interpretation problems that may result from this signal noise can be avoided by using adequate probes, detection systems and fluorochromes, and sequence of experiments.
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173
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Dierlamm J, Michaux L, Kröger N, Wlodarska I, Martiat P, Zeller W, Seeger D, Mecucci C, van den Berghe H, Hossfeld DK. ider(9)(q10)t(9;22)(q34;q11) is a recurrent chromosomal abnormality in acute lymphoblastic leukemia and lymphatic blastic phase of chronic myelogenous leukemia. CANCER GENETICS AND CYTOGENETICS 1996; 89:109-13. [PMID: 8697413 DOI: 10.1016/0165-4608(95)00342-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
We report on two cases, one with acute lymphoblastic leukemia and a second with lymphatic blastic phase of Philadelphia chromosome-positive chronic myelogenous leukemia, cytogenetically characterized by ider(9)(q10)t(9;22)(q34;q11). Our findings and the data of the 4 cases previously published indicate that ider(9)(q10)t(9;22)(q34;q11) represents a rare but recurrent chromosomal abnormality occurring in hematological malignancies with lymphoid differentiation, namely acute lymphoblastic leukemia and lymphatic blastic phase of chronic myelogenous leukemia, and most likely evolves from a preexistent der(9) involved in the standard t(9;22).
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MESH Headings
- Adult
- Blast Crisis
- Chromosome Aberrations
- Chromosomes, Human, Pair 22
- Chromosomes, Human, Pair 9
- Fusion Proteins, bcr-abl/genetics
- Humans
- In Situ Hybridization, Fluorescence
- Karyotyping
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Lymphocytes/pathology
- Male
- Middle Aged
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/drug therapy
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics
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174
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Michaux L, Dierlamm J, Mecucci C, Meeus P, Ameye G, Libouton JM, Verhoef G, Ferrant A, Louwagie A, Verellen-Dumoulin C, Van Den Berghe H. Dicentric (1;15) in myeloid disorders. CANCER GENETICS AND CYTOGENETICS 1996; 88:86-9. [PMID: 8630988 DOI: 10.1016/0165-4608(95)00218-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
We report three cases of myeloid disorders with a dic(1;15)(p11;p11), resulting in trisomy of the long arm of chromosome 1. A review of the literature showed six cases, reported as t(1;15). We suggest that these cases have the same anomaly and should be reappraised as dic(1;15).
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175
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Dierlamm J, Michaux L, Wlodarska I, Pittaluga S, Zeller W, Stul M, Criel A, Thomas J, Boogaerts M, Delaere P, Cassiman JJ, de Wolf-Peeters C, Mecucci C, Van den Berghe H. Trisomy 3 in marginal zone B-cell lymphoma: a study based on cytogenetic analysis and fluorescence in situ hybridization. Br J Haematol 1996; 93:242-9. [PMID: 8611468 DOI: 10.1046/j.1365-2141.1996.522522.x] [Citation(s) in RCA: 81] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Trisomy 3 represents the most frequent and consistent chromosomal abnormality characterizing the recently defined entity marginal zone B-cell lymphoma (MZBCL). By cytogenetic analysis and/or fluorescence in situ hybridization (FISH) on interphase nuclei we found in increased copy number of chromosome 3 in 22/36 (61%) successfully analysed cases, including 8/12 cases with extranodal MZBCL, 8/13 cases with nodal MZBCL, and 6/11 patients with splenic MZBCL. Sensitivity of interphase cytogenetics was somewhat higher than that of conventional cytogenetic investigation. Structural chromosomal changes involving at least one chromosome 3 were seen in 11/20 cases with an increased copy number of chromosome 3: +de(3)(p13) was demonstrated in three cases, and was the sole chromosomal abnormality in one of them; +i(3)(q10) was seen in two other patients; and rearrangements involving various breakpoints on the long arm of chromosome 3 were found in the remaining cases. FISH on metaphase spreads confirmed these structural abnormalities and additionally showed two unexpected translocations involving chromosome 3. We conclude that: (1) trisomy 3 occurs in a high proportion of extranodal, nodal and splenic MZBCL; (2) FISH on interphase nuclei is an additional and sensitive tool in detecting an increased copy number of chromosome 3 in MZBCL; (3) additional structural abnormalities involving the long arm of chromosome 3 are frequent but non-recurrent and are perhaps secondary changes; and (4) abnormalities such as +del(3)(pl3) and +i(3)(q10) suggest that genes located on the long arm of chromosome 3 are of particular importance in the pathogenesis of MZBCL.
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176
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Velloso ER, Michaux L, Ferrant A, Hernandez JM, Meeus P, Dierlamm J, Criel A, Louwagie A, Verhoef G, Boogaerts M, Michaux JL, Bosly A, Mecucci C, Van den Berghe H. Deletions of the long arm of chromosome 7 in myeloid disorders: loss of band 7q32 implies worst prognosis. Br J Haematol 1996; 92:574-81. [PMID: 8616020 DOI: 10.1046/j.1365-2141.1996.d01-2683.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Clinical and cytogenetic data were analysed in 54 patients with acute non-lymphocytic leukaemias (ANLL) or MDS (myelodysplastic syndromes) and deletion of the long arm of chromosome 7 (7q-), in order to determine if there is a commonly deleted region in 7q and to establish possible correlations between karyotypic features, such as karyotype pattern, karyotype complexity, associated anomalies, and/or the type of deleted segments, and outcome of patients with these disorders. The median follow-up of our patients was 4 months (range 1-89), as was the median survival. In 30% of the cases there was a history of preceding MDS or previous chemotherapy. Clinical and cytogenetic remission was obtained in 7/36 patients treated with chemotherapy (CT). At the time of 7q- detection, three patients previously treated with CT for ANLL were in clinical remission. 5q- was the most recurrent associated abnormality. Complex karyotypes were observed in 68% of the cases. In univariate analysis, statistical differences in survival were observed according to diagnosis (therapy-related and secondary diseases had a worse prognosis than primary disorders), the chromosomal segments deleted (the loss of band 7q32 was of poor prognostic value), the karyotype complexity (patients with single anomalies did better than patients with complex anomalies) and the response to therapy (patients who achieved complete remission had a better survival probability). In multivariate analysis, the loss of band 7q32 was found to be significantly related to very poor prognosis. This finding suggests that band 7q32 may contain critical genes that should be explored at the molecular level.
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177
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Velloso ER, Mecucci C, Michaux L, Van Orshoven A, Stul M, Boogaerts M, Bosly A, Cassiman JJ, Van Den Berghe H. Translocation t(8;16)(p11;p13) in acute non-lymphocytic leukemia: report on two new cases and review of the literature. Leuk Lymphoma 1996; 21:137-42. [PMID: 8907281 DOI: 10.3109/10428199609067591] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Two new cases of t(8;16)(p11;p13) in acute nonlymphocytic leukemia (ANLL) are described. These two patients in addition to the 34 previously described, showed a striking association with myelomonocytic (M4) or monocytic (M5) leukemia, extramedullary infiltration, erythrophagocytosis and disseminated intravascular coagulation. One of our patients showed a TCRbeta gene rearrangement. Alltogether 36 cases of t(8;16) ANLL have been documented until today. We here review their clinical and cytogenetic features.
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MESH Headings
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Blotting, Southern
- Child
- Child, Preschool
- Chromosomes, Human, Pair 16
- Chromosomes, Human, Pair 8
- Female
- Humans
- Infant
- Infant, Newborn
- Karyotyping
- Leukemia, Monocytic, Acute/genetics
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myelomonocytic, Acute/genetics
- Male
- Middle Aged
- Translocation, Genetic
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178
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Michaux L, Mecucci C, Pereira Velloso ER, Dierlamm J, Criel A, Louwagie A, van Orshoven A, van den Berghe H. About the t(8;13)(p11;q12) clinico-pathologic entity. Blood 1996; 87:1658-9. [PMID: 8608264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
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179
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Dierlamm J, Pittaluga S, Wlodarska I, Stul M, Thomas J, Boogaerts M, Michaux L, Driessen A, Mecucci C, Cassiman JJ, De Wolf-Peeters C, Van den Berghe H. Marginal zone B-cell lymphomas of different sites share similar cytogenetic and morphologic features. Blood 1996; 87:299-307. [PMID: 8547655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Clinical, histologic, cytogenetic, and molecular genetic data of 31 patients with extranodal, nodal, and splenic marginal zone B-cell lymphoma (MZBCL) are presented. Despite these variable clinical manifestations, a similar spectrum of morphologic features as well as distinctive immunophenotypic findings were noted. In all cases, a monotypic B-cell proliferation consistently negative for CD5, CD10, and CD23 was found expanding the marginal zone of the B follicle with and without colonization of the follicle centers. Clonal chromosomal abnormalities were detected in 23 of the 31 patients. Recurrent aberrations included whole or partial trisomy 3 (18 cases), trisomy 18 (9 cases), and structural rearrangements of chromosome 1 with breakpoints in 1q21 (9 cases) or 1p34 (6 cases), all of which were seen in extranodal, nodal, as well as splenic MZBCL. Abnormalities of the additional chromosome 3, such as +del(3)(p13),+i(3)(q10), or structural changes involving the distal part of the long arm, were evident in 9 of the 18 cases. All recurrent abnormalities were found in MZBCL more frequently than in other histologic entities of B-cell non-Hodgkin's lymphoma (B-NHL). None of the known lymphoma-associated chromosomal changes or rearrangements of the BCL1, BCL2, BCL3, BCL6, and CMYC genes were detected. We conclude that MZBCL represent a distinct entity of B-NHL with characteristic morphologic and immunophenotypic features and particular chromosomal abnormalities, and that a close histogenetic relationship between extranodal, nodal, and splenic MZBCL is likely, although the clinical presentation may vary.
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180
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Michaux L, Wlodarska I, Vellosa ER, Verhoef G, Van Orshoven A, Michaux JL, Scheiff JM, Mecucci C, Van den Berghe H. Translocation (Y;1)(q12;q12) in hematologic malignancies. Report on two new cases, FISH characterization, and review of the literature. CANCER GENETICS AND CYTOGENETICS 1996; 86:35-8. [PMID: 8616783 DOI: 10.1016/0165-4608(95)00141-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Translocation (Y;1)(q12;q12) is a rare cytogenetic anomaly occurring in hematologic disorders thought to affect stem cells. We report here on two new cases, one end-stage myelofibrosis and one chronic myelomonocytic leukemia. The translocation breakpoints were assessed by conventional cytogenetic techniques in both cases and by FISH in the second case. A partial trisomy of the 1q21-qter region could be demonstrated. The data of the literature are reviewed and the possible pathogenetic mechanisms are discussed.
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181
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Michaux L, Mecucci C, Stul M, Wlodarska I, Hernandez JM, Meeus P, Michaux JL, Scheiff JM, Noël H, Louwagie A, Criel A, Boogaerts M, Van Orshoven A, Cassiman JJ, Van Den Berghe H. BCL3 rearrangement and t(14;19)(q32;q13) in lymphoproliferative disorders. Genes Chromosomes Cancer 1996; 15:38-47. [PMID: 8824724 DOI: 10.1002/(sici)1098-2264(199601)15:1<38::aid-gcc6>3.0.co;2-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Translocation t(14;19)(q32;q13) is a rare but recurrent abnormality in chronic lymphocytic leukemia and small cell lymphoma. It has been associated with rearrangements of the BCL3 gene, which is located at the breakpoint on chromosome 19 and is juxtaposed to the immunoglobulin heavy chain locus on chromosome 14 as a result of the translocation. This results in transcriptional up-regulation of the BCL3 gene, which encodes a transcription coactivator, an I-kappa B protein, probably contributing to disease progression. We found, among 4,487 cytogenetic analyses of lymphoproliferative disorders, six cases with a t(14;19)(q32;q13), five of which showed the classical t(14;19)(q32;q13) and one of which showed a three-way translocation t(7;19;14)(q21;q13;q32). The 14;19 translocation never occurred as a single abnormality; additional aberrations included trisomy 12 and several structural abnormalities. The cytogenetic examination was supplemented by molecular analysis using available probes for the BCL3 locus (p alpha 1.4P and p alpha 5B) in 1,150 of the 4,487 patients. Rearrangements of BCL3 could be detected in five cases, all of which had the classical t(14;19). In the case with t(7;19;14), the suspected BCL3 involvement could only be confirmed using long-range restriction mapping, indicating that, with the usually available BCL3 probes, rearrangements of this locus may be missed.
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182
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Dierlamm J, Michaux L, Criel A, Wlodarska I, Zeller W, Louwagie A, Michaux JL, Mecucci C, Van den Berghe H. Isodicentric (X)(q13) in haematological malignancies: presentation of five new cases, application of fluorescence in situ hybridization (FISH) and review of the literature. Br J Haematol 1995; 91:885-91. [PMID: 8547134 DOI: 10.1111/j.1365-2141.1995.tb05405.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Idic(X)(q13) represents a rare but recurrent chromosomal abnormality in haematological malignancies. We present five new cases characterized by this particular aberration and review the literature on this subject. The patients were elderly females with a diagnosis of refractory anaemia (1/5), refractory anaemia with ringed sideroblasts (2/5), chronic myelomonocytic leukaemia (1/5), and Philadelphia chromosome-negative chronic myeloid leukaemia (1/5). Three out of the five patients demonstrated an increased proportion of bone marrow ringed sideroblasts. After a follow-up period of 30-57 months all patients but one are alive. Idic(X)(q13) always occurred as the sole chromosomal abnormality, either in one or in two copies. We confirmed the dicentric nature of the aberration by fluorescence in situ hybridization (FISH) on metaphases as well as interphase nuclei using an X-chromosome-specific alpha-satellite probe, and performed chromosome painting to visualize possible additional chromosomal changes involving the X chromosomes. Our findings and the data of 17 previously published cases indicate that idic(X)(q13): (1) may play a significant pathogenetic role in haematological malignancies affecting exclusively females and deriving predominantly from early progenitor cells; (2) is frequently associated with a pathological iron accumulation; (3) indicates a variable prognosis.
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183
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Michaux L, Dierlamm J, Wlodarska I, Stul M, Bosly A, Delannoy A, Louwagie A, Mecucci C, Cassiman JJ, van den Berghe H. Trisomy 3 is a consistent chromosome change in malignant lymphoproliferative disorders preceded by cold agglutinin disease. Br J Haematol 1995; 91:421-4. [PMID: 8547087 DOI: 10.1111/j.1365-2141.1995.tb05315.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Cold-antibody autoimmune haemolytic anaemia is a rare entity that has been associated with a wide variety of pathological processes, including malignant lymphoproliferative disorders. In this retrospective study we recorded, as far as possible, clinical, haematological, immunological, morphological, pathological, cytogenetic and molecular data on 10 patients with cold agglutinin disease (CAD). Cytogenetic anomalies were found in four cases in which an underlying lymphoma could be evidenced. Trisomy 3 was the only recurrent aberration in our series. It was observed in all patients with abnormal karyotype, either as a complete trisomy or as a partial trisomy of the long arm. The importance of this particular karyotypic aberration in the monitoring of CAD is emphasized.
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184
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Wlodarska I, De Wolf-Peeters C, Michaux L, Mecucci C, Verhoef G, Cassiman JJ, Van den Berghe H. A new t(2;5) translocation in a null cell type CD30 positive anaplastic large cell lymphoma case. Leukemia 1995; 9:1685-8. [PMID: 7564510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Anaplastic large cell lymphoma (ALCL) expressing the CD30 antigen is an uncommon subtype of non-Hodgkin's lymphoma characterized by distinct morphological and clinical features. The recurrent chromosomal abnormality found in these tumours is a t(2;5)(p23;q35) which has been detected in a minority of these cases, predominantly with a T cell immunophenotype. We report here a CD30 positive null cell type ALCL case cytogenetically characterized by a new type of t(2;5) translocation with distinct breakpoints at 2q37 and 5q31. FISH with a panel of 5q specific DNA probes applied in this case allowed for a mapping of a 5q31 breakpoint region between the locus for IL-3 (proximally) and CI5-56 probe (distally). These results point to a localization of unknown gene(s) on the long arm of chromosome 5 that, in addition to the NPM gene at 5q35, may be involved in the pathogenesis of some CD30+ ALCL.
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185
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Wlodarska I, Mecucci C, Stul M, Michaux L, Pittaluga S, Hernandez JM, Cassiman JJ, De Wolf-Peeters C, Van den Berghe H. Fluorescence in situ hybridization identifies new chromosomal changes involving 3q27 in non-Hodgkin's lymphomas with BCL6/LAZ3 rearrangement. Genes Chromosomes Cancer 1995; 14:1-7. [PMID: 8527378 DOI: 10.1002/gcc.2870140102] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Twelve B-cell non-Hodgkin's lymphomas with BCL6/LAZ3 rearrangement selected from a series of 30 lymphomas with cytogenetically detectable 3qter abnormalities were characterized at the histological, clinical, and cytogenetic levels, including fluorescence in situ hybridization (FISH) analysis, which was performed in all cases but one. A classical t(3;14) and t(3;22) were found in three patients (25%). In the remaining cases, eleven different 3q27 abnormalities were demonstrated and characterized with the use of chromosome painting. Seven of twelve "variant" rearrangements identified in our series affecting 1p32, 1p34, 3p14, 6q23, 12p13, 14q11, and 16p13 have not been reported before. Moreover, involvement of both homologs of chromosome 3 in distinct translocations was detected as an unexpected result in two cases and was confirmed via FISH in a third case. The putative bichromosomal rearrangements of the 3q27 region were evidenced by Southern analysis in one of these cases. In another case, FISH with a cosmid spanning the 3q27 breakpoint region demonstrated the involvement of BCL6/LAZ3 only in one of two t(3q27). In our series, which was selected on cytogenetic and molecular criteria, 50% (6 of 12) of cases with BCL6/LAZ3 rearrangement were diagnosed as diffuse, large B-cell lymphomas (DLCL). Another 33% (4 of 12) of cases were diagnosed as follicular center lymphomas (FL), with t(14;18)/BCL2 rearrangement in all but one case. Furthermore, in three follicular lymphoma cases in which multiple samples were analyzed, the disease showed no evidence of histological progression during a follow-up period of 3-14 years.(ABSTRACT TRUNCATED AT 250 WORDS)
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186
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Hernández JM, Mecucci C, Beverloo HB, Selleri L, Wlodarska I, Stul M, Michaux L, Verhoef G, Van Orshoven A, Cassiman JJ. Translocation (11;15)(q23;q14) in three patients with acute non-lymphoblastic leukemia (ANLL): clinical, cytogenetic and molecular studies. Leukemia 1995; 9:1162-6. [PMID: 7630191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We report on three patients with acute non-lymphoblastic leukemia (ANLL) displaying the same chromosomal translocation t(11;15)(q23;q14). The clinical course of the disease was aggressive, and survival was short. The FAB subtype was M-2 in two cases, and M-1 in the remaining patient. Immunologically two cases showed aberrant expression of a lymphoid antigen (CD19 and TdT, respectively). HTRX1/MLL gene was rearranged in one patient studied at the time of diagnosis. These results plus data scattered in the literature show that the t(11;15)(q23;q14) can be added to the list of recurrent rearrangements in ANLL involving 11q23.
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187
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Michaux L, Wlodarska I, Mecucci C, Hernandez JM, Van Orshoven A, Michaux JL, Van den Berghe H. Characterization by chromosome painting of balanced and unbalanced X chromosome translocations in myelodysplastic syndromes. CANCER GENETICS AND CYTOGENETICS 1995; 82:17-22. [PMID: 7627929 DOI: 10.1016/0165-4608(94)00283-h] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Structural anomalies of the X chromosome, especially translocations, are rare events in myelodysplastic syndromes (MDS). In a series of 2270 MDS patients analyzed between 1983 and 1994 (Center for Human Genetics, Leuven), 9 cases were found with translocations involving the X chromosome. These aberrations were not restricted to specific FAB subtypes and were the sole anomalies in 3 cases. In the remaining 6 patients, they were associated with other abnormalities, including 5q-, observed in three cases. Fluorescence in situ hybridization (FISH) was retrospectively performed on 8 patients and was shown to be a useful complement for the characterization of the translocations involving the X chromosome. In 3 cases, we could identify translocation partners and breakpoint regions only by using chromosome painting. No recurrent chromosome partners were observed. The breakpoints could be localized along the whole X chromosome. There was, however, a cluster in the Xq13 region involved in 4 of the 9 patients. The previously reported association of Xq13 anomalies with refractory anemia with ringed sideroblasts (RARS) was found in only one case. Despite the lack of characteristic translocations involving the X chromosome, the occurrence of such changes as the sole karyotypic anomaly suggests that they could play a role in the pathogenesis of some myelodysplastic syndromes.
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188
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Michaux L, Lefebvre C, Coche E. [Perverse effects of an apparently harmless habit...]. Rev Med Interne 1993; 14:121-2. [PMID: 8378624 DOI: 10.1016/s0248-8663(05)81264-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
We report the case of a 47-year old woman with a long history of arterial hypertension. Because of a recent difficulty to control blood pressure values accompanied by hypokalaemia, a thorough investigation was performed, showing low renin and aldosterone blood levels and high urinary potassium levels. Repeated questioning revealed that the patient regularly consumed non-negligible quantities of liquorice-flavored chewing-gun. The physiopathogenic mechanisms of action of liquorice are reviewed.
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189
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Michaux L, Lefebvre C, Lebaupin C, Lo Presti L, Coche E. [Spontaneous dissection of the anterior interventricular coronary artery in the postpartum period]. Rev Med Interne 1993; 14:49-50. [PMID: 8362111 DOI: 10.1016/s0248-8663(05)82524-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
We report a case of anterior myocardial infarction which occurred in a young woman without history of cardio-vascular disease 10 days after she had given birth. Coronary arteriography performed 2 months later showed a pseudo-aneurysm of the anterior interventricular artery consecutive to spontaneous dissection of this vessel. The other coronary arteries were normal.
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190
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Meys E, Michaux L, Lambert M, Triki R, Nagant de Deuxchaisnes C. Septic Streptococcus milleri prepatellar bursitis. Clin Rheumatol 1992; 11:109-11. [PMID: 1582108 DOI: 10.1007/bf02207096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The osteoarticular affinity of Streptococcus milleri has only recently been recognized. We report a case of septic prepatellar bursitis caused by this pathogen. The recent literature concerning osteoarticular involvement by S. milleri is reviewed.
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191
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Abstract
Subcutaneous and mediastinal sometimes emphysema occurs in critically ill patients in association with soft-tissue infections, mucosal disruption, penetrating trauma or any condition that creates a pressure gradient between the intraalveolar and perivascular spaces. The aberrant air can spread along the fascia into different anatomical areas, and may reach the mediastinum and the peritoneum. In two cases we found some air inside the dorsal spinal area. This localisation has not been previously described in the literature.
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192
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Omeñaca F, Quero J, Polo P, Michaux L, Martínez A, Ruíz A. [Early onset group B streptococcal neonatal sepsis (author's transl)]. ANALES ESPANOLES DE PEDIATRIA 1979; 12:607-16. [PMID: 386862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Seventy one per cent of neonates had a gestational age longer than 37 weeks. Sixteen showed respiratory distress, and shock occured in twelve cases. The onset of illness happened within the first 12 hours of life, in 15 cases. No differences were observed among preterm and term infants. Differential leukocyte count were altered in all infants, being particularly relevant the fact that the relation between immature neutrophil/total neutrophil, was elevated in 50 per cent of cases. Mortality rate was 52 per cent. Clinical alert and early treatment with penicillin, together with the use of fresh blood exchange transfusion, can be considered useful methods in the treatment of these cases.
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193
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Gómez-Mampaso E, Michaux L, de Rafael L, Peña P, Carvajal A, Baquero F. Listeria monocytogenes: faecal carriers and perinatal mortality. MICROBIOLOGIA ESPANOLA 1975; 28:117-28. [PMID: 825700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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194
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Michaux L. [Some preliminary points concerning mental anorexia]. ANNALES DE MEDECINE INTERNE 1973; 124:631-3. [PMID: 4767273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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195
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Michaux L. [Death of M. Jean Nouaille (1909-1972). Allocution by M Leon Michaux, President]. ANNALES DE MEDECINE INTERNE 1972; 123:1001. [PMID: 4573187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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196
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Michaux L. [Death of M. Roger de Brun du Bois Noir. Address by M. L. Michaux, President]. ANNALES DE MEDECINE INTERNE 1972; 123:687. [PMID: 4571569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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197
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Michaux L. [Death of Mr. René Wolfromm. Address by Mr. L. Michaux, President]. ANNALES DE MEDECINE INTERNE 1972; 123:688. [PMID: 4571570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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198
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Michaux L. [Death of Professor Jean Lenègre. Address by M. Léon Michaux, President]. ANNALES DE MEDECINE INTERNE 1972; 123:556. [PMID: 4562973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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199
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Michaux L. [Death of M. Fred Siguier. Address by M. Léon Michaux, President]. ANNALES DE MEDECINE INTERNE 1972; 123:555. [PMID: 4562972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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200
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Michaux L. [Psychiatry in medicine]. LA NOUVELLE PRESSE MEDICALE 1972; 1:967-70. [PMID: 4553268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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