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1.
Front Med (Lausanne) ; 11: 1345611, 2024.
Article in English | MEDLINE | ID: mdl-38903819

ABSTRACT

Burkitt Lymphoma (BL) is a highly treatable cancer. However, delayed diagnosis of BL contributes to high mortality in BL endemic regions of Africa. Lack of enough pathologists in the region is a major reason for delayed diagnosis. The work described in this paper is a proof-of-concept study to develop a targeted, open access AI tool for screening of histopathology slides in suspected BL cases. Slides were obtained from a total of 90 BL patients. 70 Tonsillectomy samples were used as controls. We fine-tuned 6 pre-trained models and evaluated the performance of all 6 models across different configurations. An ensemble-based consensus approach ensured a balanced and robust classification. The tool applies novel features to BL diagnosis including use of multiple image magnifications, thus enabling use of different magnifications of images based on the microscope/scanner available in remote clinics, composite scoring of multiple models and utilizing MIL with weak labeling and image augmentation, enabling use of relatively low sample size to achieve good performance on the inference set. The open access model allows free access to the AI tool from anywhere with an internet connection. The ultimate aim of this work is making pathology services accessible, efficient and timely in remote clinics in regions where BL is endemic. New generation of low-cost slide scanners/microscopes is expected to make slide images available immediately for the AI tool for screening and thus accelerate diagnosis by pathologists available locally or online.

2.
Biomed Pharmacother ; 177: 116970, 2024 Jun 18.
Article in English | MEDLINE | ID: mdl-38897160

ABSTRACT

Burkitt's lymphoma (BL) is a rare and highly aggressive B-cell non-Hodgkin lymphoma. Although the outcomes of patients with BL have greatly improved, options for patients with relapsed and refractory BL are limited. Therefore, there is an urgent need to improve BL therapeutics and to develop novel drugs with reduced toxicity. In this study, we demonstrated that enolase 1 (ENO1) is a potential novel drug target for BL treatment. We determined that ENO1 was aberrantly upregulated in BL, which was closely related to its invasiveness and poor clinical outcomes. Furthermore, using RNA interference, we demonstrated that ENO1 depletion significantly inhibited cell proliferation and invasion both in vitro and in vivo. Mechanistically, we established that ENO1 knockdown suppressed the PI3K-AKT and epithelial-mesenchymal transition (EMT) signaling pathways by reducing plasminogen (PLG) recruitment, plasmin (PL) generation, and TGF-ß1 activation. Addition of activated TGF-ß1 protein to the culture medium of shENO1 cells reversed the inhibitory effects on cell proliferation and invasion, as well as those on the PI3K-AKT and EMT signaling pathways. Notably, our research led to the discovery of a novel ENO1-PLG interaction inhibitor, Ciwujianoside E (L-06). L-06 effectively disrupts the interaction between ENO1 and PLG, consequently reducing PL generation and suppressing TGF-ß1 activation. In both in vitro and in vivo experiments, L-06 exerted impressive antitumor effects. In summary, our study elucidated the critical role of ENO1 in BL cell proliferation and invasion and introduced a novel ENO1 inhibitor, which holds promise for improving the treatment of patients with BL in the future.

4.
Ann Med Surg (Lond) ; 86(6): 3694-3697, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38846844

ABSTRACT

Introduction: Burkitt lymphoma (BL) is an aggressive non-Hodgkin lymphoma characterized by chromosome 8 MYC gene translocation. It manifests in three clinical types: immunodeficiency-related, sporadic (nonendemic), and endemic (African), each differing in epidemiology and clinical behavior. Treatment typically involves enrollment in clinical trials or intensive chemotherapy regimens like R-CODOX-M/IVAC. The authors present a case of recurrent BL following treatment. Case report: A 13-year-old female presented with a gradually progressive swelling in the left parieto-occipital region. Examination revealed normal vital signs and a Glasgow coma scale, with seronegative findings on investigations. An excision of a subganglion soft tissue tumor was performed, revealing histopathological features suggestive of a small round blue cell tumor. After chemotherapy, the patient experienced a recurrence in the scalp region, diagnosed as BL. Discussion: While scarce reports exist on BL in the scalp region, cases have been documented in various body locations. Treatment strategies, including chemotherapy and surgery, have shown promising results in managing the disease and improving symptoms. Conclusion: The recurrence of BL is rare, highlighting the importance of vigilance in monitoring patients post-treatment. The authors report a case of recurrent BL in a 13-year-old female, emphasizing the need for continued research and surveillance in managing this aggressive malignancy.

5.
J Investig Med ; : 10815589241262003, 2024 Jun 13.
Article in English | MEDLINE | ID: mdl-38869155

ABSTRACT

Non-Hodgkin lymphoma (NHL) is one of the common hematological cancers in the United States (U.S.). The mortality rate of NHL in the U.S. is the sixth highest among all cancers. Our study aims to examine the trends and disparity in NHL mortality. We analyzed death certificate data from the Centers for Disease Control and Prevention's Wide-Ranging Online Data for Epidemiologic Research (CDC WONDER) U.S. to determine the NHL mortality trends among the U.S. population aged ≥ 15 years. NHL (ICD-10 C82-85) was listed as the underlying cause of death. Age-adjusted mortality rates (AAMRs) per 100,000 individuals and joinpoint trend analysis were performed to determine the average annual percent change (AAPC) in AAMR trends. From 1999 to 2020, NHL accounted for 457,143 deaths in the United States, of which 54% are men and 46% are women. The NHL AAMR decreased significantly from 10.59 to 6.21 per 100,000 individuals with the AAPC of -2.55. Men had a higher AAMR than women (10.10 vs. 6.29 per 100,000 individuals). Whites recorded the highest AAMR (8.43 per 100,000 individuals), followed by Blacks (5.71 per 100,000 individuals), Hispanics (6.32 per 100,000 individuals), American Indians (5.31 per 100,000 individuals), and Asians (5.10 per 100,000 individuals). Those who lived in the Midwest and the rural areas had the highest AAMR at 8.60 and 8.35 per 100,000 individuals respectively. Despite the declining NHL mortality rate, this study calls for targeted intervention to improve outcomes for susceptible individuals affected by NHL.

6.
Cureus ; 16(5): e60985, 2024 May.
Article in English | MEDLINE | ID: mdl-38916019

ABSTRACT

Type B lactic acidosis secondary to the Warburg effect is a rare metabolic complication associated with hematological malignancies. Type B lactic acidosis occurs without tissue dysoxia due to increased aerobic glycolysis and excess lactic acid formation, commonly known as the Warburg effect. Here, we present a case of Burkitt lymphoma in a 69-year-old female with severe type B lactic acidosis and hypoglycemia that was effectively treated by the prompt initiation of chemotherapy. Type B lactic acidosis has been mostly described with hematological malignancies and rarely with solid malignancies. It is considered one of the oncological emergencies, and initiation of chemotherapy as soon as possible has been beneficial compared to alkali therapy. Lactic acidosis associated with malignancies carries a poor prognosis and high mortality.

7.
Value Health Reg Issues ; 44: 101016, 2024 Jun 24.
Article in English | MEDLINE | ID: mdl-38917509

ABSTRACT

OBJECTIVE: Before June 2022, the treatment cost of Burkitt lymphoma (BL) in Ghana was mainly borne by the child's family or caregiver. We determined the treatment cost of BL in children and its psychological impact on parents and caregivers. METHOD: This prospective observational study assessed the direct medical and nonmedical costs (US dollars [USD]) incurred during the treatment of a child with BL for 6 consecutive months using a cost diary. Productivity losses and the psychological impact on parents and caregivers were assessed using a self-administered questionnaire and the Caregiver Quality of Life Index-Cancer (CQOLC). RESULTS: Of the 25 participants, 7 abandoned the treatment of their children, and 4 withdrew because the children passed away. The median (Q1, Q3) cost for treating BL per child for caregivers/parents (N = 12) was USD 947.42 (USD 763.03, USD 1953.05). Direct medical costs formed 71% (USD 11 458.97) of total treatment costs. Working hours of parents before the child's cancer diagnosis decreased from a median (Q1, Q3) of 44.00 (20.00, 66.00) hours to 1.50 (0, 20.00) hours after the diagnosis. The mean (SD) CQOLC score was 107.92 (15.89), with higher scores in men (111.00 [17.26]), married participants (111.26 [17.29]), Higher National Diploma certificate holders (113.00 [1.41]), and participants earning a monthly income more than USD 84.60. CONCLUSION: Treatment costs reduced the overall household income of 5 families. Parents and caregivers experienced reduced work hours and loss of employment. CQOLC scores were higher in married participants, those with a higher educational background, and those with higher income.

8.
bioRxiv ; 2024 Jun 14.
Article in English | MEDLINE | ID: mdl-38915538

ABSTRACT

Viral infection leads to heterogeneous cellular outcomes ranging from refractory to abortive and fully productive states. Single cell transcriptomics enables a high resolution view of these distinct post-infection states. Here, we have interrogated the host-pathogen dynamics following reactivation of Epstein-Barr virus (EBV). While benign in most people, EBV is responsible for infectious mononucleosis, up to 2% of human cancers, and is a trigger for the development of multiple sclerosis. Following latency establishment in B cells, EBV reactivates and is shed in saliva to enable infection of new hosts. Beyond its importance for transmission, the lytic cycle is also implicated in EBV-associated oncogenesis. Conversely, induction of lytic reactivation in latent EBV-positive tumors presents a novel therapeutic opportunity. Therefore, defining the dynamics and heterogeneity of EBV lytic reactivation is a high priority to better understand pathogenesis and therapeutic potential. In this study, we applied single-cell techniques to analyze diverse fate trajectories during lytic reactivation in two B cell models. Consistent with prior work, we find that cell cycle and MYC expression correlate with cells refractory to lytic reactivation. We further found that lytic induction yields a continuum from abortive to complete reactivation. Abortive lytic cells upregulate NFκB and IRF3 pathway target genes, while cells that proceed through the full lytic cycle exhibit unexpected expression of genes associated with cellular reprogramming. Distinct subpopulations of lytic cells further displayed variable profiles for transcripts known to escape virus-mediated host shutoff. These data reveal previously unknown and promiscuous outcomes of lytic reactivation with broad implications for viral replication and EBV-associated oncogenesis.

9.
Metabolomics ; 20(4): 67, 2024 Jun 28.
Article in English | MEDLINE | ID: mdl-38940866

ABSTRACT

INTRODUCTION: Burkitt lymphoma (BL) is an aggressive non-Hodgkin lymphoma associated with Plasmodium falciparum and Epstein-Barr virus, both of which affect metabolic pathways. The metabolomic patterns of BL is unknown. MATERIALS AND METHODS: We measured 627 metabolites in pre-chemotherapy treatment plasma samples from 25 male children (6-11 years) with BL and 25 cancer-free area- and age-frequency-matched male controls from the Epidemiology of Burkitt Lymphoma in East African Children and Minors study in Uganda using liquid chromatography-tandem mass spectrometry. Unconditional, age-adjusted logistic regression analysis was used to estimate odds ratios (ORs) and their 95% confidence intervals (CIs) for the BL association with 1-standard deviation increase in the log-metabolite concentration, adjusting for multiple comparisons using false discovery rate (FDR) thresholds and Bonferroni correction. RESULTS: Compared to controls, levels for 42 metabolite concentrations differed in BL cases (FDR < 0.001), including triacylglyceride (18:0_38:6), alpha-aminobutyric acid (AABA), ceramide (d18:1/20:0), phosphatidylcholine ae C40:6 and phosphatidylcholine C38:6 as the top signals associated with BL (ORs = 6.9 to 14.7, P < 2.4✕10- 4). Two metabolites (triacylglyceride (18:0_38:6) and AABA) selected using stepwise logistic regression discriminated BL cases from controls with an area under the curve of 0.97 (95% CI: 0.94, 1.00). CONCLUSION: Our findings warrant further examination of plasma metabolites as potential biomarkers for BL risk/diagnosis.


Subject(s)
Burkitt Lymphoma , Metabolomics , Humans , Burkitt Lymphoma/blood , Burkitt Lymphoma/metabolism , Child , Uganda/epidemiology , Male , Case-Control Studies , Metabolomics/methods , Metabolome , Female
10.
Pediatr Blood Cancer ; : e31145, 2024 Jun 24.
Article in English | MEDLINE | ID: mdl-38924656

ABSTRACT

BACKGROUND: Despite the excellent outcomes achieved in the treatment of pediatric Burkitt lymphoma (BL) in high-income countries (HICs), outcomes remain poor in low- and middle-income countries (LMICs). Efforts to improve BL outcomes in Tanzania included the creation of National Treatment Guidelines in 2016. However, disease outcomes in Tanzania following the creation of these guidelines have not been reported to date. PROCEDURE: Historical records from 2016 to 2021 for patients 0-18 years of age with a diagnosis of BL and seen at Bugando Medical Centre (BMC), in Mwanza, Tanzania, were curated into an electronic database and analyzed descriptively. Patients in this cohort were treated per the Tanzanian National Treatment Guidelines, which include six cycles of cyclophosphamide, vincristine, and methotrexate (COM) chemotherapy with intrathecal methotrexate and cytarabine. RESULTS: In total, 92 BL patients' records were eligible for analysis. Patients in this cohort were most commonly Murphy stage II (28%) or stage III (34%). Nearly all, 91%, met International Network for Cancer Treatment and Research (INCTR) high-risk criteria at presentation. Forty-two percent of patients did not receive a biopsy and were treated with a presumed diagnosis of BL alone. A 1-year event-free survival of 29.6% (95% confidence interval [CI]: 20.3%-39.5%) and a 1-year overall survival of 38.5% (95% CI: 28%-48.9%) were observed. A high rate of treatment abandonment (34%) was also observed. CONCLUSION: In a historical cohort of pediatric patients with BL treated per the 2016 Tanzanian National Treatment Guidelines, we observed poor outcomes and a high rate of abandonment. These outcomes appear inferior to those achieved in the INCTR clinical trial that informed the guidelines' creation, and highlights the importance of "real-world" outcomes data in LMICs. These data reinforce the idea that continued clinical research and capacity building efforts are necessary to improve BL outcomes in LMICs.

11.
Clin Case Rep ; 12(5): e8838, 2024 May.
Article in English | MEDLINE | ID: mdl-38721565

ABSTRACT

This report highlights the risk of latent tuberculosis (TB) reactivation after treatment with Polatuzumab Vedotin (PV), Rituximab, and Bendamustine (PBR protocol) despite appropriate chemoprophylaxis. A 48-year-old male with refractory Burkitt's lymphoma (BKL) was treated with PBR protocol. At baseline, the patient had a negative QuantiFERON test result, which turned out to be positive prior to starting PBR. He received chemoprophylaxis for 9 months and was compliant with treatment. One year later, he was admitted with COVID-19 pneumonia and was treated according to the protocol. His symptoms persisted for 1 month. Investigations yielded disseminated TB-infiltrated bone marrow and pleura. Downstream B-cell and T-cell depletion secondary to CD20 and CD79b antagonism may potentially explain the increased risk of TB reactivation associated with the combination of PV and rituximab. Further research is necessary to monitor the risk of TB reactivation among patients receiving a combination of PV and rituximab, especially in endemic areas with high prevalence and incidence of TB.

12.
J Investig Med High Impact Case Rep ; 12: 23247096241253341, 2024.
Article in English | MEDLINE | ID: mdl-38767125

ABSTRACT

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.


Subject(s)
Burkitt Lymphoma , Stomach Neoplasms , Humans , Female , Burkitt Lymphoma/diagnosis , Burkitt Lymphoma/pathology , Middle Aged , Stomach Neoplasms/pathology , Stomach Neoplasms/diagnosis , Abdominal Pain/etiology , Biopsy , Melena/etiology , Tomography, X-Ray Computed , Lymphoma, Non-Hodgkin
13.
Cureus ; 16(4): e58937, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38800252

ABSTRACT

Adult intussusception is an infrequent occurrence typically resulting from an identifiable lead point of a benign or malignant etiology. Here, we present a case of a 19-year-old male who presented to the emergency department with complaints of abdominal pain, intractable nausea, and fluctuations between bloody diarrhea and constipation. These symptoms had begun two months prior and had increased in severity, resulting in significant appetite changes. An abdominal and pelvic computed tomography scan without contrast was obtained, which showed evidence of intussusception of the ileocecum into the transverse colon with resultant small bowel obstruction. The patient underwent an exploratory laparotomy, which resulted in a partial ileocolectomy due to the presence of a 6.8 cm cecal mass with palpable mesenteric lymphadenopathy. The pathologic specimen was identified as Burkitt lymphoma based on a combination of histologic, immunohistochemical, and fluorescence in situ hybridization findings. Currently, the patient is undergoing three cycles of rituximab, cyclophosphamide, vincristine, doxorubicin, high-dose methotrexate, ifosfamide, etoposide, and high-dose cytarabine (R-CODOX-M/IVAC) per Magrath protocol for low-risk Burkitt lymphoma.

14.
Life (Basel) ; 14(5)2024 May 16.
Article in English | MEDLINE | ID: mdl-38792653

ABSTRACT

Non-Hodgkin lymphoma (NHL) is among the five most common pediatric cancer diagnoses in children and adolescents and consists of a heterogeneous group of lymphoid tissue malignancies -with B-cell-derived NHL accounting for nearly 80% of cases. Novel and high-throughput diagnostic tools have significantly increased our understanding of B-NHL biology and molecular pathogenesis, leading to new NHL classifications and treatment options. This retrospective cohort study investigated 17 cases of both mature B-cell NHL (Burkitt lymphoma or BL; Diffuse large B-cell lymphoma or DLBCL; Primary mediastinal large B-cell lymphoma or PMBCL; Follicular lymphoma or FL) and immature B-cell progenitor NHL (B-lymphoblastic lymphoma or BLL) that were treated in a tertiary Pediatric Hematology-Oncology Department during the last 20 years. Modern NHL protocols for children, adolescents, and young adults, along with the addition of rituximab, are safe and efficient (100% overall survival; one relapse). Elevated ESR was more prevalent than elevated LDH. Analyses have focused on immune reconstitution (grade ≥3 infections, lymphocyte and immunoglobulin levels recovery) and body-mass-index changes post-treatment, late effects (in 53% of patients), and the presence of histology markers BCL2, BCL6, CD30, cMYC, and Ki-67%. One patient was diagnosed with a second malignant neoplasm (papillary thyroid cancer).

15.
Front Oncol ; 14: 1296238, 2024.
Article in English | MEDLINE | ID: mdl-38764580

ABSTRACT

Background: Richter transformation refers to the progression of an initially slow-growing small lymphocytic lymphoma/chronic lymphocytic leukemia (SLL/CLL) into an aggressive lymphoma, typically diffuse large B-cell lymphoma (DLBCL) or Hodgkin lymphoma. Case presentation: The patient presented with a rapid onset of localized cervical swelling, accompanied by monoclonal B-cell lymphocytosis displaying a CLL immunophenotype. The histopathological analysis identified a Burkitt lymphoma (BL) located in the submandibular gland and adjacent lymph node. The patient's bone marrow displayed a minor infiltration of monoclonal B-cells with a CLL immunophenotype (< 10%). Molecular analysis demonstrated the presence of the same monoclonal rearrangement in the framework region (FR3 region) of the immunoglobulin heavy chain (IGH) locus. High-throughput sequencing of the immunoglobulin heavy and light chains also confirmed the presence of the same rearrangement in SLL/CLL and in the Burkitt lymphoma sample, but also highlighted the presence of a second rearrangement in the Burkitt lymphoma cells, not shared with the SLL/CLL cells in the bone marrow. The patient was treated with DA-EPOCH-R, which lead to a complete metabolic response. Conclusion: This report provides an exceptionally rare description of a CLL-type monoclonal B-cell lymphocytosis transforming into a very aggressive Burkitt lymphoma in a treatment naïve patient.

16.
Surg Case Rep ; 10(1): 133, 2024 May 29.
Article in English | MEDLINE | ID: mdl-38806890

ABSTRACT

BACKGROUND: Biliary obstruction due to compression by a B-cell solid tumor occurs rarely. A few reports have described biliary reconstruction surgery for obstructive jaundice caused by Burkitt's lymphoma. However, there are no detailed reports on pediatric cases. We report a pediatric case of obstructive jaundice due to malignant lymphoma treated with biliary reconstruction surgery. CASE PRESENTATION: A 5-year-old girl presented to our hospital with a massive abdominal tumor that caused biliary stricture. Chemotherapy was initiated after an open tumor biopsy. However, endoscopic biliary stent placement was performed owing to elevated bilirubin levels. We treated the patient with chemotherapy for 9 months while endoscopically replacing the biliary stent every few months. She achieved complete tumor remission. However, sclerotic lymph nodes were persistent on the dorsal side of the cholecystic duct junction, and biliary stricture at the same site had changed to stent-dependent biliary obstruction. Therefore, we performed choledochojejunostomy and retrocolic Roux-en-Y reconstruction 15 months after initial admission. There were no postoperative complications or tumor recurrences, and the bilirubin level remained low. Histopathologically, the resected bile duct wall was fibrotic and thick, and the bile duct lumen narrowed. CONCLUSIONS: Biliary reconstruction is effective to achieve long-term biliary patency in pediatric patients with stent-dependent biliary obstruction due to malignant lymphoma. However, the decision on when to stop biliary stent replacement and proceed to biliary reconstruction surgery is a matter of debate. Further case studies are required to address this issue.

17.
touchREV Endocrinol ; 20(1): 63-67, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38812670

ABSTRACT

Pituitary infiltration by systemic lymphoma is an exceedingly rare occurrence. Given its high mortality rate, it is crucial to recognize its clinical, biochemical and radiological features in order to provide timely intervention. We present the case of a 26-year-old male with a history of human immunodeficiency virus (HIV) infection who presented to the hospital with severe anemia, persistent fever, weight loss and diarrhea over the previous 4 months. Physical examination revealed a compromised general condition, fever, pallor, hepatomegaly and lymphadenopathy. Cervical lymph node biopsy confirmed Burkitt lymphoma (BL). During hospitalization, the patient developed polyuria, polydipsia, hypernatremia, fluid-resistant hypotension and hypoglycaemia. Corticosteroid therapy was initiated due to suspected adrenal insufficiency, resulting in clinical improvement but exacerbation of polyuria and hypernatremia. Plasma and urinary osmolarity confirmed arginine vasopressin deficiency, and assessment of anterior pituitary reserve revealed hypopituitarism, necessitating hormonal replacement therapy. Sellar magnetic resonance imaging with contrast revealed pituitary infiltration. The patient subsequently developed septic shock and died. BL accounts for approximately 10% of the cases of pituitary infiltration associated with lymphoma. Clinical presentation is heterogeneous, with panhypopituitarism often serving as the initial manifestation. Sellar magnetic resonance imaging plays a pivotal role in the differential diagnosis. Management typically entails chemotherapy, immunotherapy, radiation and hormonal replacement therapy. This case report describes a patient with BL and HIV infection who developed panhypopituitarism due to pituitary infiltration, an exceedingly rare presentation considered a medical emergency.

18.
Am J Nucl Med Mol Imaging ; 14(2): 97-109, 2024.
Article in English | MEDLINE | ID: mdl-38737646

ABSTRACT

Infection with the Human Immunodeficiency Virus (HIV) is one of the most pressing issues facing public health on a worldwide scale. Currently, HIV-related lymphoma is the most common cause of death among people living with HIV, and warrants more attention. The unique challenges associated with HIV-related lymphoma management derive from the underlying HIV infection and its immunosuppressive effects. 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) has gained significant prominence in the past few years as a valuable diagnostic and therapeutic instrument for the treatment of HIV-related lymphoma. This review will start with an overview of the subtypes, risk factors, and therapeutic choices for individuals with HIV-related lymphoma. We will then briefly discuss the current application of 18F-FDG PET/CT in the medical management of HIV-related lymphoma patients, followed by the initial staging of the disease, the evaluation of therapeutic response, the prediction of prognostic outcomes, the decision-making process for radiotherapy guided by PET findings, and the distinguishing of various diagnoses.

19.
Cancers (Basel) ; 16(7)2024 Apr 02.
Article in English | MEDLINE | ID: mdl-38611075

ABSTRACT

BACKGROUND: Burkitt lymphoma (BL) accounts for 10-35% of AIDS-defining lymphoma in people with HIV (PWH). Previous research consisting of smaller cohorts has shown decreased survival for HIV-associated BL. This study aims to compare overall mortality in BL patients with and without HIV, while investigating impact of treatment modalities in HIV-associated BL. METHODS: Using the 2004-2019 NCDB, we identified 4312 patients with stage 3 or 4 BL who had a known HIV status and received either chemotherapy alone or chemotherapy and immunotherapy. Time to death was evaluated using Kaplan-Meier survival estimates. Risk of death was evaluated using an extended multivariable Cox model adjusted for multiple factors and with a Heaviside function for HIV status by time period (0-3 month vs. 3-60 month). RESULTS: Of the 4312 patients included, 1514 (35%) had HIV. For months 0-3 from time of diagnosis, HIV status was not associated with a statistically significant increase in risk of death (HR = 1.04, 95% CI: 0.86, 1.26, p = 0.6648). From month 3to 60, positive HIV status was associated with a 55% increase in risk of death compared to those without HIV (95% CI: 1.38, 1.75, p < 0.0001). Further, this difference in hazard rates (0-3 vs. 3-60) was statistically significant (HR = 1.49, 95% CI: 1.22-1.82, p < 0.001). CONCLUSIONS: There is an increased mortality rate from months 3 to 60 in BL patients with HIV compared to patients without HIV. Additionally, risk of death in the first 3 months is significantly decreased by 45% in patients with HIV treated with combination chemotherapy and immunotherapy compared to patients without HIV receiving combination chemotherapy and immunotherapy, providing valuable clinical insight into treatment decision making in the care of HIV-associated BL.

20.
Cureus ; 16(3): e56227, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38618387

ABSTRACT

Burkitt lymphoma (BL) is a neoplasm of the lymphoid tissue and one of the most prevalent malignancies worldwide. Classically, these patients present with unregulated B-cell differentiation causing fever, chills, night sweats, and weight loss. Although more common in children, in sporadic Burkitt lymphoma, symptoms often can be present in the abdomen. These patients also additionally report nausea, vomiting, and abdominal distention, which in rare instances can cause small bowel obstruction (SBO). Early detection and the initiation of chemotherapy remain highly effective in providing adequate care. This provides better outcomes and prevents surgical management.

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