Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 1.340
Filtrar
1.
J Investig Med High Impact Case Rep ; 12: 23247096241253341, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38767125

RESUMEN

Primary gastric Burkitt's lymphoma is an aggressive non-Hodgkin's lymphoma that has been rarely reported in the literature. The majority of primary gastric lymphomas are diffuse large B-cell lymphomas and mucosa-associated lymphoid tissue (MALT) lymphomas. Patients with primary gastric Burkitt's lymphoma can present with abdominal pain, hematemesis, melena, perforation, and obstruction. Diagnosis is made with a combination of clinical, radiological, and pathological findings. Treatment data are limited due to the limited cases reported. We present a case of a 47-year-old female who presented with diffuse abdominal pain, melena, and coffee-ground emesis that was diagnosed with primary gastric Burkitt's lymphoma following biopsies taken from a gastric ulcerated mass found on upper endoscopy.


Asunto(s)
Linfoma de Burkitt , Neoplasias Gástricas , Humanos , Femenino , Linfoma de Burkitt/diagnóstico , Linfoma de Burkitt/patología , Persona de Mediana Edad , Neoplasias Gástricas/patología , Neoplasias Gástricas/diagnóstico , Dolor Abdominal/etiología , Biopsia , Melena/etiología , Tomografía Computarizada por Rayos X , Linfoma no Hodgkin
3.
BMC Pediatr ; 24(1): 209, 2024 Mar 23.
Artículo en Inglés | MEDLINE | ID: mdl-38521927

RESUMEN

BACKGROUND: Tumor lysis syndrome (TLS) is a hematologic oncological emergency characterized by metabolic and electrolyte imbalances. On breakdown of tumor cells, enormous amounts of potassium, phosphate, and nucleic acids are released into systemic circulation. TLS mainly occurs during chemotherapy. However, there are rare incidences of spontaneous tumor lysis syndrome (STLS) prior to commencement of therapy. CASE PRESENTATION: In the case being reported, the child had just undergone a biopsy. As the incision was being closed, there was a sudden onset of high fever, arrhythmia, severe hyperkalemia, hypocalcemia, and acidosis. Following timely symptomatic treatment and continuous renal replacement therapy(CRRT), the child's laboratory results improved, and organ function was restored to normal. The final pathological diagnosis confirmed Burkitt lymphoma. The boy is currently on maintenance chemotherapy. CONCLUSIONS: TLS is a potentially life-threatening complication in hematologic oncology. Several important conclusions can be drawn from this case, reminding clinicians to: (1) be fully aware of the risk factors of TLS and evaluate the level of risk; (2) pay attention to the possibility of STLS during operation, if surgical procedures are necessary and operate with minimal trauma and in the shortest time possibly; (3) take preoperative prophylaxis actively for high-risk TLS patients, including aggressive fluid management and rational use of diuretics and uric-acid-lowering drugs. In addition, this case confirms the effectiveness of CRRT for severe STLS.


Asunto(s)
Linfoma de Burkitt , Síndrome de Lisis Tumoral , Desequilibrio Hidroelectrolítico , Masculino , Niño , Humanos , Linfoma de Burkitt/complicaciones , Linfoma de Burkitt/diagnóstico , Linfoma de Burkitt/terapia , Síndrome de Lisis Tumoral/diagnóstico , Síndrome de Lisis Tumoral/etiología , Síndrome de Lisis Tumoral/terapia , Factores de Riesgo , Biopsia/efectos adversos
5.
PLoS One ; 19(3): e0299777, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38466670

RESUMEN

INTRODUCTION: The role of age and sex in the presentation and outcome of endemic Burkitt lymphoma (BL) has not been studied recently. This study analysed these factors in 934 patients with BL who had received cyclophosphamide and intrathecal methotrexate as treatment. METHODS: Records of 934 children diagnosed with BL from 2004 to 2015 were obtained from our Paediatric Oncology Networked Database (POND) cancer registry. Age at diagnosis, sex, disease stage, time to diagnosis, delay in diagnosis, completion of treatment, rate of abandonment, and one-year survival rates were recorded and statistically analysed. RESULTS: The male to female ratio of 1.41 for the study population of 934. The median delay from onset of symptoms to diagnosis was 31 days. The St Jude stage distribution was I = 6.4%, II = 5.9%, III = 71.5% and IV = 16.2%. Significantly more patients presented with stage III disease in age groups 5-9 and 10-14 years than 0-4 years. The overall 1-year survival rate was 53.45%, respectively 77.1% for stage I, 67.9% for stage II, 55.1% for stage III and 32.4% for stage IV disease (p<0.001). There was no significant difference in survival by sex and age group. CONCLUSION: Patients aged under 5 years presented with less-advanced disease, but survival was not affected by age. Sex did not influence delay to diagnosis and overall survival. The long delay between the onset of symptoms and diagnosis emphasises the need for interventions to achieve an earlier diagnosis and a better survival rate.


Asunto(s)
Linfoma de Burkitt , Niño , Humanos , Masculino , Femenino , Anciano , Linfoma de Burkitt/diagnóstico , Linfoma de Burkitt/tratamiento farmacológico , Linfoma de Burkitt/patología , Camerún , Ciclofosfamida/uso terapéutico , Metotrexato/uso terapéutico , Supervivencia sin Enfermedad , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Resultado del Tratamiento
6.
J Am Dent Assoc ; 155(4): 344-348, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38244019

RESUMEN

BACKGROUND: Burkitt lymphoma (BL) is a subtype of non-Hodgkin lymphoma. It is strongly associated with HIV infection and has a highly aggressive clinical course. The involvement of the maxillofacial region in BL has rarely been reported. CASE DESCRIPTION: A 36-year-old woman with HIV-positive status had painless bilateral swelling of the oral mucosa and middle and lower thirds of the face. Microscopic analysis of the oral lesion revealed an atypical lymphoid infiltrate with a starry sky pattern. The lymphoid cells expressed cluster of differentiation 20, cluster of differentiation 10, B-cell lymphoma 6, and c-Myc; the Ki-67 proliferative index was high. The tumor cells were positive for Epstein-Barr virus. These results led to the diagnosis of HIV-related BL. PRACTICAL IMPLICATIONS: BL and other immunodeficiency-related lymphoproliferative malignancies may affect the oral and maxillofacial regions and should be included in the differential diagnosis of rapidly expanding swelling in young patients.


Asunto(s)
Linfoma de Burkitt , Infecciones por Virus de Epstein-Barr , Infecciones por VIH , Femenino , Humanos , Adulto , Linfoma de Burkitt/complicaciones , Linfoma de Burkitt/diagnóstico , Linfoma de Burkitt/patología , Infecciones por Virus de Epstein-Barr/diagnóstico , Infecciones por Virus de Epstein-Barr/patología , Herpesvirus Humano 4 , Infecciones por VIH/complicaciones , Infecciones por VIH/diagnóstico
7.
Technol Cancer Res Treat ; 23: 15330338231214236, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38179657

RESUMEN

Objectives: Studies on the prognosis and risk stratification of patients with acquired immune deficiency syndrome (AIDS) - related Burkitt lymphoma (AR-BL) are rare. We aim to construct a novel model to improve the risk assessment of these patients. Methods: We retrospectively analyzed the clinical data of 34 patients over the past 10 years and the factors associated with progression-free survival (PFS) and overall survival (OS) were evaluated in univariate and multivariate Cox models. Then, the novel model consisting of screened factors was compared with the existing models. Results: With a 37-month median follow-up, the overall 2-year PFS and OS rates were 40.50% and 36.18%, respectively. The OS of patients who received chemotherapy was better compared with those without chemotherapy (P = .0012). Treatment with an etoposide, prednisone, oncovin, cyclophosphamide, and hydroxydaunorubicin-based regimen was associated with longer OS and PFS compared with a cyclophosphamide, doxorubicin, vincristine, and prednisone-based regimen (OS, P = .0002; PFS, P = .0158). Chemotherapy (hazard ratio [HR] = 0.075; 95% confidence interval [CI], 0.009-0.614) and Eastern Cooperative Oncology Group Performance Status (ECOG PS) 2 to 4 (HR = 4.738; 95% CI, 1.178-19.061) were independent prognostic factors of OS in multivariate analysis and we established a novel prognostic risk stratification model named GZ8H model with chemotherapy and ECOG PS. Conclusion: GZ8H showed better stratification ability than the international prognostic index (IPI) or Burkitt lymphoma IPI (BL-IPI). Furthermore, the C-index of the nomogram used to predict OS was 0.884 in the entire cohort and the calibration curve showed excellent agreement between the predicted and actual results of OS. No human immunodeficiency virus-related factors were found to be associated with OS and PFS of AR-BL patients in our study. Overall, the clinical characteristics and outcomes in AR-BL were shown and prognostic factors for OS and PFS were identified in this study.


Asunto(s)
Síndrome de Inmunodeficiencia Adquirida , Linfoma de Burkitt , Linfoma de Células B Grandes Difuso , Humanos , Linfoma de Burkitt/diagnóstico , Linfoma de Burkitt/tratamiento farmacológico , Linfoma de Burkitt/etiología , Estudios Retrospectivos , Síndrome de Inmunodeficiencia Adquirida/tratamiento farmacológico , Prednisona , Supervivencia sin Enfermedad , Pronóstico , Ciclofosfamida , Vincristina , Doxorrubicina/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico
8.
Cytopathology ; 35(2): 275-282, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38095270

RESUMEN

BACKGROUND: Burkitt lymphoma (BL) is an aggressive high-grade B-cell non-Hodgkin lymphoma commonly diagnosed in young age and is known to involve extra nodal sites. But the involvement of body fluids by BL is an uncommon presentation. Rapid diagnosis of BL is vital to prevent complications like tumour lysis syndrome. Cytological examination of body fluids continues to be an indispensable tool for rapid diagnosis of BL. OBJECTIVES: In this study, we aim to study the clinical, cytomorphological and immunophenotypic characteristics of BL involving serous effusions and other fluids. MATERIALS AND METHODS: In this retrospective study, 17 cases reported as BL in fluid cytology from 2016 to 2022 were collected and reviewed. We performed a comprehensive analysis of the clinical data, cytomorphological features, immunophenotyping data along with the haematological workup of these cases. We have also compared with the histopathological diagnosis for those cases where biopsy was available. RESULTS: BL more commonly involved ascitic fluid (52%), followed by pleural fluid (4 cases) and cerebrospinal fluid (CSF; 4 cases). Primary diagnosis of BL in fluid was done in 88% of the cases. Bone marrow involvement was noted in two cases. Cytological smears showed discrete monomorphous population of medium-sized atypical lymphoid cells with frequent apoptotic bodies. Classic cytoplasmic punched out vacuoles were observed in 88% of the cases. Immunophenotyping data was available for 12 cases in which tumour cells showed positivity for CD20 (100%), CD10 (4 of 7 cases), BCL6 (3 of 5 cases) and cMYC (7 of 7 cases-100%) and were negative for Terminal deoxynucleotidyl transferase (TdT) (11 of 11 cases). Mean Ki67 labelling index was 95%. Histopathological diagnosis was available for 9 cases, and there was 100% agreement between cytological and histopathological diagnosis in 7 cases. CONCLUSION: Precise diagnosis of BL can be rendered in body fluids by identification of classic cytomorphological features and by performing supportive ancillary tests in fluids for immunophenotyping.


Asunto(s)
Linfoma de Burkitt , Humanos , Linfoma de Burkitt/diagnóstico , Linfoma de Burkitt/patología , Citodiagnóstico , Citología , Inmunofenotipificación , Estudios Retrospectivos , Atención Terciaria de Salud
9.
Eur J Surg Oncol ; 50(1): 107268, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38043361

RESUMEN

Intestinal lymphomas can rarely present as abdominal catastrophes with perforation or small bowel obstruction. There is little data regarding their optimal surgical management and associated outcomes. We aimed to systematically review relevant published literature to assess the presentation, diagnosis, optimal surgical approach and associated post-operative outcomes. A systematic on-line literature search of Embase and Medline identified 1485 articles of which 34 relevant studies were selected, including 7 retrospective studies, 1 case series and 26 case reports. Selected articles were assessed by two reviewers to extract data. 95 patients with abdominal catastrophes secondary to lymphoma (predominately Burkitt (28 %) and Diffuse Large B-cell lymphoma (29 %)) were identified with a median age of 52 years, 40 % were female. Of the small bowel resections 25% (n = 18) suffered post-operative complications with a 13.8 % (n = 10) 30-day mortality. Ileocolonic resections had a 27 % complication rate with 18 % mortality and primary repair had a 25 % complications rate and 25 % mortality. Median follow-up was 8 days (range 1-96). Notable points of differences in the presentations between these different lymphomas included the majority of Burkitt's lymphoma were younger, had a known diagnosis, were on chemotherapy and presented with perforation in contrast to those with B cell lymphoma who were predominately older, had new diagnoses and presented with a balanced proportion of obstruction and perforation. Abdominal catastrophes secondary to intestinal lymphomas most commonly present with perforation. Aggressive surgical management, including small bowel resection, may offer similar remission rates for lymphoma patients presenting with abdominal catastrophes as those without such emergency complications.


Asunto(s)
Linfoma de Burkitt , Neoplasias Intestinales , Obstrucción Intestinal , Linfoma , Humanos , Femenino , Persona de Mediana Edad , Masculino , Laparotomía , Estudios Retrospectivos , Linfoma/complicaciones , Linfoma/cirugía , Linfoma de Burkitt/complicaciones , Linfoma de Burkitt/diagnóstico , Linfoma de Burkitt/cirugía , Obstrucción Intestinal/etiología , Obstrucción Intestinal/cirugía , Neoplasias Intestinales/complicaciones , Neoplasias Intestinales/cirugía
10.
Lancet Haematol ; 10(12): e966-e975, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37922925

RESUMEN

BACKGROUND: Patients with newly diagnosed high-risk Burkitt lymphoma are treated with high-intensity immune-chemotherapy regimens such as R-CODOX-M/R-IVAC or with lower-intensity regimens such as DA-EPOCH-R. The aim of this study was to make a formal comparison between these regimens. METHODS: This multicentre, phase 3, open-label, randomised study was done in 26 clinical centres in the Netherlands, Belgium, and Switzerland. Eligible patients were aged 18-75 years with newly diagnosed high-risk Burkitt lymphoma without CNS involvement. Patients were randomly assigned to two cycles of R-CODOX-M/R-IVAC (R-CODOX-M: rituximab 375 mg/m2 on day 1 and 9, cyclophosphamide 800 mg/m2 on day 1, cyclophosphamide 200 mg/m2 on days 2-5, vincristine 1·5 mg/m2 on days 1 and 8, doxorubicin 40 mg/m2 on day 1, and methotrexate 3000 mg/m2 on day 10; R-IVAC: rituximab 375 mg/m2 on days 3 and 7, iphosphamide 1500 mg/m2 on days 1-5, etoposide 60 mg/m2 on days 1-5, and cytarabin 2000 mg/m2 on day 1 and 2) or six cycles of DA-EPOCH-R (dose-adjusted etoposide 50-124 mg/m2 on days 1-4, prednisolone 120 mg/m2 on days 1-5, vincristine 0·4 mg/m2 on days 1-4, dose-adjusted cyclophosphamide 480-1866 mg/m2 on day 5, dose-adjusted doxorubicin 10-24·8 mg/m2 on days 1-4, rituximab 375 mg/m2 on days 1 and 5). Patients older than 65 years received a dose modified R-CODOX-M/R-IVAC. All drugs were intravenous except for prednisolone, which was oral. Patients also received four intrathecal CNS administrations with cytarabin (70 mg) and four with methotrexate (15 mg). Patients were stratified by centre, leukemic disease, and HIV-positivity. The primary endpoint was progression-fee survival. All analyses were done by modified intention-to-treat, excluding randomly assigned patients who were subsequently found to have CNS involvement or diagnosis other than Burkitt lymphoma at study entry. This study is registered with the European Clinical Trial Register, EudraCT2013-004394-27. FINDINGS: Due to a slow accrual, the study was closed prematurely on Nov 15, 2021. Between Aug 4, 2014, and Sept 17, 2021, 89 patients were enrolled and randomly assigned to receive R-CODOX-M/R-IVAC (n=46) or DA-EPOCH-R (n=43). Five patients were excluded after random assignment (three in the R-CODOX-M/R-IVAC group [one diagnosis other than Burkitt lymphoma at study entry according to local pathology and two CNS involvement] and two in the DA-EPOCH-R group [one diagnosis other than Burkitt lymphoma at study entry according to local pathology and one CNS involvement]. 84 remaining patients were included in the modified intention-to-treat analysis. 73 (87%) of 84 patients were male, 76 (90%) presented with stage III or IV disease, and nine (11%) had HIV-positive Burkitt lymphoma. Median patient age was 52 years (IQR 37-64). With a median follow-up of 28·5 months (IQR 13·2-43·7), 2-year progression-free survival was 76% (95% CI 60-86%) in the R-CODOX-M/R-IVAC group and 70% (54-82%) in the DA-EPOCH-R group (hazard ratio 1·42, 95% CI 0·63-3·18; p=0·40). There were two deaths in the R-CODOX-M/R-IVAC group (one infection [treatment related] and one due to disease progression [not treatment related]) and one death in the DA-EPOCH-R group (COVID-19 infection [treatment related]). In the R-CODOX-M/R-IVAC group, four patients went off-protocol because of toxic effects, versus none in the DA-EPOCH-R group. Patients treated with R-CODOX-M/R-IVAC had more infectious adverse events (24 [56%] of 43 patients had at least one grade 3-5 infection vs 14 [34%] of 41 patients in the DA-EPOCH-R group). INTERPRETATION: The trial stopped early, but the available data suggest that while DA-EPOCH-R did not result in superior progression-free survival compared with R-CODOX-M/R-IVAC, it was associated with fewer toxic effects and need for supportive care. DA-EPOCH-R appears to be an additional valid therapeutic option for patients with high-risk Burkitt lymphoma without CNS involvement. FUNDING: The Dutch Cancer Society and the Schumacher-Kramer Foundation.


Asunto(s)
Linfoma de Burkitt , Humanos , Masculino , Femenino , Linfoma de Burkitt/diagnóstico , Linfoma de Burkitt/tratamiento farmacológico , Etopósido , Vincristina , Rituximab/uso terapéutico , Metotrexato , Citarabina , Ciclofosfamida/efectos adversos , Doxorrubicina , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Prednisolona/uso terapéutico
11.
Clin J Oncol Nurs ; 27(5): 571-574, 2023 09 15.
Artículo en Inglés | MEDLINE | ID: mdl-37729460

RESUMEN

Burkitt lymphoma (BL) is a curable, aggressive pediatric cancer, yet in low- and middle-income countries like Nigeria, children with BL face poor survival outcomes. Identifying barriers to and facilitators of cancer care for.


Asunto(s)
Linfoma de Burkitt , Niño , Humanos , Linfoma de Burkitt/diagnóstico , Linfoma de Burkitt/terapia , Nigeria/epidemiología
12.
Ann Diagn Pathol ; 66: 152182, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37543028

RESUMEN

Burkitt lymphoma (BL) is a mature B-cell neoplasm arising from germinal center B-cells. There are three epidemiological variants of which the sporadic variant is most prevalent in developed countries representing 1-2 % of all lymphomas in adults. Patients usually present with bulky abdominal masses and ~ 30 % have bone marrow involvement. BL is characterized by a germinal center B-cell immunophenotype and usually has a simple karyotype. Here we report an unusual case of sporadic BL in a 44-year-old man and we use this case to review sporadic BL in adults. The patient presented with a cecal mass and bone marrow involvement. Biopsy of the cecal mass and bone marrow evaluation showed infiltration by intermediate-size lymphoma cells positive for monotypic kappa, CD10, CD19, CD20, CD22, CD38 bright, CD43, CD45, Bcl6 and ROR1, and negative for CD11c, CD23, CD30, CD44, CD200 and Bcl2. As expected, the lymphoma cells were strongly positive for MYC and Ki-67 showed a proliferation rate of nearly 100 %, but the cells were also positive for SOX11 and cytoplasmic LEF1. Conventional chromosomal analysis revealed t(8;14) as part of a complex karyotype. Based on our literature review, and is shown in this case, sporadic BL in adults shows some differences with the classic description of BL in children. We also discuss the differential diagnosis of BL.


Asunto(s)
Linfoma de Burkitt , Linfoma de Células B , Linfoma , Masculino , Niño , Adulto , Humanos , Linfoma de Burkitt/genética , Linfoma de Burkitt/diagnóstico , Linfoma de Burkitt/patología , Translocación Genética , Linfoma de Células B/patología , Cariotipo , Factores de Transcripción SOXC/genética
13.
Pathologie (Heidelb) ; 44(6): 338-347, 2023 Nov.
Artículo en Alemán | MEDLINE | ID: mdl-37608069

RESUMEN

BACKGROUND: Lymphomas in children and adolescents differ from adulthood in relative frequency and variety of entities. In addition, young patients are cared for according to the specific standards of pediatric lymphoma study groups. OBJECTIVE: To present lymphomas of diagnostic and clinical relevance in the pediatric and adolescent group. MATERIAL AND METHODS: Selective literature research ( http://www.ncbi.nlm.nih.gov ) was combined with clinico-pathological experience of the authors. RESULTS: Children and adolescents are much more likely to suffer from aggressive and precursor cell lymphoma than is the case in adulthood. Unlike adult patients, Burkitt lymphomas and diffuse large B­cell lymphomas are not treated fundamentally differently. Entities that have been described relatively recently and are particularly common in young patients are high-grade B­cell lymphoma with 11q aberrations and large-cell B­cell lymphoma with IRF4 translocations. CONCLUSION: Lymphoma diagnosis in children and adolescents is characterized by the particular spectrum of diseases that occur at this age. Special knowledge about the clinical relevance of the diagnoses in childhood is helpful in order to enable rapid clinical decision making.


Asunto(s)
Linfoma de Burkitt , Linfoma de Células B Grandes Difuso , Adulto , Humanos , Adolescente , Niño , Linfoma de Burkitt/diagnóstico , Linfoma de Células B Grandes Difuso/diagnóstico , Aberraciones Cromosómicas , Translocación Genética , Reordenamiento Génico
14.
World J Surg Oncol ; 21(1): 219, 2023 Jul 24.
Artículo en Inglés | MEDLINE | ID: mdl-37482619

RESUMEN

BACKGROUND: Primary hepatic Burkitt lymphoma (PHBL) in children is an extremely rare hepatic malignancy with a dismal prognosis, unless it is detected and treated promptly. An 11-year-old child with abdominal pain was admitted to our hospital. No notable abnormalities were found during his physical examination or laboratory workup, but the abdominal computed tomography and magnetic resonance imaging both indicated a malignant hepatic mass measuring 9.2 × 7.1 × 7.5 cm in size. His postoperative pathology revealed an unexpected primary hepatic Burkitt lymphoma following a laparoscopic liver lobectomy. He then received rituximab and intense multi-agent chemotherapy as treatment. Despite post-chemotherapy bone marrow suppression, the patient eventually made a full recovery and had a good overall state. CONCLUSION: In this study, we describe a rare case of pediatric primary hepatic Burkitt lymphoma and review the literature on clinical features, diagnosis, and treatment for primary hepatic Burkitt lymphoma in children. We stress that this diagnosis should be taken into account in the absence of other single hepatic lesions or primary tumors of hematological disorders, particularly when there is a normal AFP level.


Asunto(s)
Linfoma de Burkitt , Masculino , Humanos , Niño , Linfoma de Burkitt/cirugía , Linfoma de Burkitt/diagnóstico , Pronóstico , Dolor Abdominal , Rituximab/uso terapéutico , Abdomen/patología
16.
Semin Diagn Pathol ; 40(6): 392-400, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37400280

RESUMEN

Mature non-Hodgkin lymphomas (NHLs) of the pediatric and young adults(PYA), including Burkitt lymphoma (BL), diffuse large B cell lymphoma (DLBCL), high-grade B cell lymphoma (HGBCL), primary mediastinal large B cell lymphoma (PMBL) and anaplastic large cell lymphoma (ALCL), generally have excellent prognosis compared to the adult population. BL, DLBCL and HGBCL are usually of germinal center (GCB) origin in the PYA population. PMBL neither belongs to the GCB nor the activated B cell subtype and is associated with a poorer outcome than BL or DLBCL of comparable stage. Anaplastic large cell lymphoma is the most frequent peripheral T cell lymphoma occurring in the PYA and accounts for 10-15% of childhood NHL. Most pediatric ALCL, unlike in the adult, demonstrate expression of anaplastic lymphoma kinase (ALK). In recent years, the understanding of the biology and molecular features of these aggressive lymphomas has increased tremendously. This has led to reclassification of newer PYA entities including Burkitt-like lymphoma with 11q aberration. In this review, we will discuss the current progress discovered in frequently encountered aggressive NHLs in the PYA, highlighting the clinical, pathologic and molecular features that aid in the diagnosis of these aggressive lymphomas. We will be updating the new concepts and terminologies used in the new classification systems.


Asunto(s)
Linfoma de Burkitt , Linfoma de Células B Grandes Difuso , Linfoma Anaplásico de Células Grandes , Humanos , Adulto Joven , Niño , Linfoma de Células B Grandes Difuso/diagnóstico , Linfoma de Células B Grandes Difuso/metabolismo , Linfoma de Células B Grandes Difuso/patología , Linfoma de Burkitt/diagnóstico , Linfoma de Burkitt/genética , Linfoma de Burkitt/patología
18.
J Clin Exp Hematop ; 63(2): 121-131, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37380468

RESUMEN

High-grade B-cell lymphoma with 11q aberrations (HGBL-11q) has been classified for the first time as a high-grade mature B-cell neoplasm according to the 5th edition of the World Health Organization Classification of Tumors of Hematopoietic and Lymphoid Tissues. HGBL-11q is morphologically and immunohistochemically similar to Burkitt lymphoma (BL) or HGBL; it is characterized by gain in the 11q23.2-11q23.3 region and loss in the 11q24.1-qter region but it lacks MYC translocation. HGBL-11q is a rare tumor, and its exact frequency in Japan remains unclear. In this study, we classified 113 Germinal center B-cell (GCB) type aggressive B-cell lymphomas (BCLs), which were divided into BL, high-grade (HG), and large cell (LC) morphologies. We performed fluorescence in situ hybridization (FISH) to identify 11q aberrations. Nine patients had 11q aberrations (7.96%, 9/113), including six HGBL-11q. The age range was from 8 to 87 years, and all were male. Six out of 14 patients with HG morphology were diagnosed with HGBL-11q (6/14, 42.9%). HGBL-11q has been found to occur primarily in children and young adults but also in middle-aged and older adults. Patients with HG morphology without MYC translocation should undergo FISH for 11q aberrations regardless of age. However, the pathogenesis, clinical findings, and prognosis of HGBL-11q remain unclear. The accumulation of cases with an accurate HGBL-11q diagnosis in daily practice and accurate and detailed data on HGBL-11q will contribute to further understanding of 11q aberrations.


Asunto(s)
Linfoma de Burkitt , Aberraciones Cromosómicas , Masculino , Humanos , Femenino , Hibridación Fluorescente in Situ , Linfoma de Burkitt/diagnóstico , Linfoma de Burkitt/genética , Translocación Genética , Japón
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA