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1.
BMJ Case Rep ; 17(5)2024 May 21.
Article in English | MEDLINE | ID: mdl-38772873

ABSTRACT

Vanishing bile duct syndrome is an uncommon condition characterised by the progressive loss and disappearance of bile ducts. It is an acquired form of cholestatic liver disease presenting with hepatic ductopenia (loss of >50% bile ducts in the portal areas). We present a case of vanishing bile duct syndrome as a presentation of Hodgkin's lymphoma who was treated with standard-of-care chemotherapy-doxorubicin, bleomycin, vinblastine and dacarbazine (along with brief administration of rituximab), which led to complete response and normalisation of liver function.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols , Bleomycin , Hodgkin Disease , Adult , Female , Humans , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Bile Duct Diseases/diagnosis , Bleomycin/administration & dosage , Bleomycin/therapeutic use , Dacarbazine/therapeutic use , Dacarbazine/administration & dosage , Doxorubicin/therapeutic use , Hodgkin Disease/complications , Hodgkin Disease/drug therapy , Hodgkin Disease/diagnosis , Rituximab/therapeutic use , Rituximab/administration & dosage , Syndrome , Vinblastine/therapeutic use , Vinblastine/administration & dosage
2.
J Natl Cancer Inst ; 115(4): 437-446, 2023 04 11.
Article in English | MEDLINE | ID: mdl-36625510

ABSTRACT

BACKGROUND: An important issue for patients with cancer treated with novel therapeutics is how they weigh the effects of treatment on survival and quality of life (QOL). We compared QOL in patients enrolled to SWOG S1400I, a substudy of the LungMAP biomarker-driven master protocol. METHODS: SWOG S1400I was a randomized phase III trial comparing nivolumab plus ipilimumab vs nivolumab for treatment of immunotherapy-naïve disease in advanced squamous cell lung cancer. The primary endpoint was the MD Anderson Symptom Inventory-Lung Cancer severity score at week 7 and week 13 with a target difference of 1.0 points, assessed using multivariable linear regression. A composite risk model for progression-free and overall survival was derived using best-subset selection. RESULTS: Among 158 evaluable patients, median age was 67.6 years and most were male (66.5%). The adjusted MD Anderson Symptom Inventory-Lung Cancer severity score was 0.04 points (95% confidence interval [CI] = -0.44 to 0.51 points; P = .89) at week 7 and 0.12 points (95% CI = -0.41 to 0.65; P = .66) at week 13. A composite risk model showed that patients with high levels of appetite loss and shortness of breath had a threefold increased risk of progression or death (hazard ratio [HR] = 3.06, 95% CI = 1.88 to 4.98; P < .001) and that those with high levels of both appetite loss and work limitations had a fivefold increased risk of death (HR = 5.60, 95% CI = 3.27 to 9.57; P < .001)-compared with those with neither risk category. CONCLUSIONS: We found no evidence of a benefit of ipilimumab added to nivolumab compared with nivolumab alone for QOL in S1400I. A risk model identified patients at high risk of poor survival, demonstrating the prognostic relevance of baseline patient-reported outcomes even in those with previously treated advanced cancer.


Subject(s)
Carcinoma, Non-Small-Cell Lung , Lung Neoplasms , Humans , Male , Aged , Female , Nivolumab/adverse effects , Ipilimumab/adverse effects , Quality of Life , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Carcinoma, Non-Small-Cell Lung/drug therapy , Carcinoma, Non-Small-Cell Lung/etiology , Lung Neoplasms/etiology
3.
NPJ Breast Cancer ; 8(1): 80, 2022 Jul 11.
Article in English | MEDLINE | ID: mdl-35817765

ABSTRACT

Triple-negative breast cancer (TNBC) is classically defined by estrogen receptor (ER) and progesterone receptor (PR) immunohistochemistry expression <1% and absence of HER2 amplification/overexpression. HER2-negative breast cancer with low ER/PR expression (1-10%) has a gene expression profile similar to TNBC; however, real-world treatment patterns, chemotherapy response, endocrine therapy benefit, and survival outcomes for the Low-ER group are not well known. 516 patients with stage I-III HER2-negative breast cancer and ER/PR expression ≤10% who were enrolled in a multisite prospective registry between 2011 and 2019 were categorized on the basis of ER/PR expression. TNBC (ER and PR < 1%) and Low-ER (ER and/or PR 1-10%) groups comprised 87.4% (n = 451) and 12.6% (n = 65) of patients, respectively. Demographic, clinical, and treatment characteristics, including prevalence of germline BRCA1/2 mutation, racial and ethnic distribution, and chemotherapy use were not different between TNBC and Low-ER groups. No difference was observed in recurrence-free survival (RFS) and overall survival (OS) between TNBC and Low-ER groups (3-year RFS 82.5% versus 82.4%, respectively, p = 0.728; 3-year OS 88.0% versus 83.4%, respectively, p = 0.632). Among 358 patients receiving neoadjuvant chemotherapy, rates of pathologic complete response were similar for TNBC and Low-ER groups (49.2% vs 51.3%, respectively, p = 0.808). The HER2-negative Low-ER group is often excluded from TNBC clinical trials assessing novel treatments (immunotherapy and antibody-drug conjugates), thus limiting efficacy data for newer effective therapies in this group. Given that HER2-negative Low-ER disease displays clinical characteristics and outcomes similar to TNBC, inclusion of this group in TNBC clinical trials is encouraged.

4.
J Med Cases ; 13(5): 219-224, 2022 May.
Article in English | MEDLINE | ID: mdl-35655627

ABSTRACT

The bite of a brown recluse spider (Loxosceles reclusa) is usually associated with skin necrosis; however, it can lead to more significant morbidity including acute hemolytic anemia, rhabdomyolysis, disseminated intravascular coagulopathy and death. Here we highlight a case using plasmapheresis as treatment for acute hemolytic anemia caused by the bite of a brown recluse spider. A 49-year-old male presented to the emergency room 5 days after suffering a spider bite due to worsening symptoms. He had worsening pain at the site of the bite, diffuse body myalgias, darkening of his urine, chills, and shortness of breath. Hematology was consulted to assist in the management of hemolytic anemia refractory to multiple blood transfusions, worsening acute kidney failure requiring hemodialysis, and concern for impending death. After a literature review suggesting plasmapheresis may be beneficial in this scenario, the case was discussed with the local blood bank, and plasmapheresis was initiated. The patient underwent plasmapheresis with albumin for 2 days and the patient's hemoglobin improved and stabilized. Therapy of loxoscelism is directed at limiting the dermatonecrosis at the site of the envenomation and in cases of systemic illness supportive care is recommended. Therapeutic plasma exchange has been shown efficacious in treating snake envenomation, but there are limited data detailing its use for brown recluse spider envenomation. Here we present a case to highlight the benefit of plasmapheresis in a patient with acute hemolytic anemia secondary to a brown recluse spider bite.

5.
Article in English | MEDLINE | ID: mdl-34380112

ABSTRACT

BACKGROUND: Psychological distress is common in patients with cancer. Distress can affect patients' engagement with treatment. We examined the relationship between psychological distress and treatment timeliness in a sample of adult oncology patients at a safety-net hospital. METHODS: A retrospective review was conducted of all patients screened for distress at a first outpatient oncology visit between March 1, 2014, and December 31, 2015 (n=500). The analytic sample (n=96) included patients with a new cancer diagnosis and a curative-intent treatment plan for lymphoma (stage I-IV), solid tumor malignancy (stage I-III), or head and neck cancer (stage I-IVb). Distress was measured using the Hospital Anxiety and Depression Scale. Using Poisson regression, we determined the effects of depression and anxiety on treatment timeliness. Patient age, sex, race/ethnicity, insurance type, cancer site, and cancer stage were included as covariates. RESULTS: Mean patient age was 54 years. The median treatment initiation interval was 28 days. Clinically significant anxiety was present in 34% of the sample, and clinically significant depression in 15%. Greater symptom severity in both anxiety and depression were associated with a longer treatment initiation interval after controlling for demographics and disease factors. The average days to treatment (DTT) was 4 days longer for patients with elevated anxiety scores and for those with elevated depression scores compared with those without. Overall survival was not associated with anxiety, depression, or DTT. CONCLUSIONS: In this safety-net patient sample, greater psychological distress was associated with slower time to treatment. As of writing, this is a new finding in the literature, and as such, replication studies utilizing diverse samples and distress measurement tools are needed.

6.
Cureus ; 13(2): e13293, 2021 Feb 11.
Article in English | MEDLINE | ID: mdl-33728224

ABSTRACT

Multiple myeloma is a plasma cell neoplasm characterized by clonal proliferation of immunoglobulin producing terminally differentiated B cells. Classically patients are described to present with bone pain, hypercalcemia, anemia, and/or renal impairment. A less described clinical manifestation related to the myeloma is acquired coagulation abnormalities including paraprotein interfering with the coagulation cascade or exhibiting specific antibody activity. Factor X deficiency is reported in patients with secondary amyloidosis. We describe a patient who presented with bleeding tendency and an abnormal prothrombin and activated partial thromboplastin times (PT/PTT) due to factor X deficiency. A thorough workup revealed the diagnosis of multiple myeloma with the presence of monoclonal lambda light chain restricted plasma cells with qualifying end-organ damage without evidence of amyloidosis. Prior to the ultimate diagnosis, the patient succumbed to septic shock and acute respiratory distress syndrome due to Streptococcus Pneumonia infection.

7.
Clin Cancer Res ; 27(4): 975-982, 2021 02 15.
Article in English | MEDLINE | ID: mdl-33208340

ABSTRACT

PURPOSE: Addition of carboplatin (Cb) to anthracycline chemotherapy improves pathologic complete response (pCR), and carboplatin plus taxane regimens also yield encouraging pCR rates in triple-negative breast cancer (TNBC). Aim of the NeoSTOP multisite randomized phase II trial was to assess efficacy of anthracycline-free and anthracycline-containing neoadjuvant carboplatin regimens. PATIENTS AND METHODS: Patients aged ≥18 years with stage I-III TNBC were randomized (1:1) to receive either paclitaxel (P) weekly × 12 plus carboplatin AUC6 every 21 days × 4 followed by doxorubicin/cyclophosphamide (AC) every 14 days × 4 (CbP → AC, arm A), or carboplatin AUC6 + docetaxel (D) every 21 days × 6 (CbD, arm B). Stromal tumor-infiltrating lymphocytes (sTIL) were assessed. Primary endpoint was pCR in breast and axilla. Other endpoints included residual cancer burden (RCB), toxicity, cost, and event-free (EFS) and overall survival (OS). RESULTS: One hundred patients were randomized; arm A (n = 48) or arm B (n = 52). pCR was 54% [95% confidence interval (CI), 40%-69%] in arm A and 54% (95% CI, 40%-68%) in arm B. RCB 0+I rate was 67% in both arms. Median sTIL density was numerically higher in those with pCR compared with those with residual disease (20% vs. 5%; P = 0.25). At median follow-up of 38 months, EFS and OS were similar in the two arms. Grade 3/4 adverse events were more common in arm A compared with arm B, with the most notable differences in neutropenia (60% vs. 8%; P < 0.001) and febrile neutropenia (19% vs. 0%; P < 0.001). There was one treatment-related death (arm A) due to acute leukemia. Mean treatment cost was lower for arm B compared with arm A (P = 0.02). CONCLUSIONS: The two-drug CbD regimen yielded pCR, RCB 0+I, and survival rates similar to the four-drug regimen of CbP → AC, but with a more favorable toxicity profile and lower treatment-associated cost.


Subject(s)
Anthracyclines/administration & dosage , Antineoplastic Combined Chemotherapy Protocols/administration & dosage , Carboplatin/administration & dosage , Neoadjuvant Therapy/methods , Triple Negative Breast Neoplasms/therapy , Adult , Aged , Anthracyclines/adverse effects , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Carboplatin/adverse effects , Female , Humans , Mastectomy , Middle Aged , Neoadjuvant Therapy/adverse effects , Neoplasm Staging , Neoplasm, Residual , Progression-Free Survival , Triple Negative Breast Neoplasms/diagnosis , Triple Negative Breast Neoplasms/mortality , Triple Negative Breast Neoplasms/pathology
8.
Am J Case Rep ; 20: 1394-1397, 2019 Sep 21.
Article in English | MEDLINE | ID: mdl-31541071

ABSTRACT

BACKGROUND Rituximab is a chimeric monoclonal antibody to CD20 that is used to treat vasculitis, B-cell lymphoproliferative disorders, and B-cell non-Hodgkin lymphoma (NHL). A report is presented of a case of rituximab-induced acute thrombocytopenia (RIAT) in a woman with splenic marginal zone lymphoma (SMZL) and chronic hepatitis C virus (HCV) infection. CASE REPORT A 46-year-old woman with SMZL complicated by chronic HCV infection presented with worsening B symptoms of fever, night sweats, and loss of weight. The patient had a history of recreational drug use. Intravenous treatment with rituximab (dose, 375 mg/m²) commenced with close monitoring in hospital. On the following day, the complete blood count (CBC) showed that her platelet count had dropped from her admission level of 167,000/µl to 7,000/µl, with no change in hemoglobin or white blood cell (WBC) levels. A diagnosis of RIAT was made. The patient was managed conservatively and monitored for the development of potential clinical complications. CONCLUSIONS RIAT is a rare complication of treatment with rituximab and may be poorly recognized. Further studies are needed to determine the incidence and causes of thrombocytopenia in patients treated with rituximab and the possible association with chronic viral infections, including HCV.


Subject(s)
Antineoplastic Agents, Immunological/adverse effects , Rituximab/adverse effects , Thrombocytopenia/chemically induced , Female , Hepatitis C, Chronic/complications , Humans , Lymphoma, B-Cell, Marginal Zone/drug therapy , Middle Aged , Splenic Neoplasms/drug therapy
9.
Cureus ; 11(2): e4121, 2019 Feb 22.
Article in English | MEDLINE | ID: mdl-31037235

ABSTRACT

Anemia is a common finding in alcoholics. It is often multifactorial and caused by a combination of liver dysfunction, ineffective erythropoiesis, and poor nutrition. Zieve's syndrome (ZS) is a clinical syndrome that presents with a triad of jaundice, hemolytic anemia, and hyperlipidemia secondary to alcohol use. Herein, we present a case of a 58-year-old male with a history of liver cirrhosis who presented after a fall due to binge drinking and was found to have severe anemia. Workup was consistent with hemolytic anemia with no source of active bleeding. The patient was managed with supportive treatment and blood transfusions which improved his anemia. However, given his advanced liver disease, he developed encephalopathy and subsequently severe aspiration pneumonia. He died 18 days after admission.

10.
Cureus ; 10(5): e2686, 2018 May 24.
Article in English | MEDLINE | ID: mdl-30050741

ABSTRACT

Posterior reversible encephalopathy syndrome (PRES) is a clinical-radiographic syndrome that presents with neurological manifestations, including seizures, headache, or confusion, and is associated with posterior cerebral white matter edema on imaging. PRES is typically a benign and reversible condition. However, PRES can be fatal or associated with permanent deficits. Numerous conditions are associated with PRES, including hypertensive encephalopathy, renal diseases, and cytotoxic or immunosuppressant drugs. Recently, many case reports described the association between PRES and chemotherapeutic agents. However, trastuzumab-associated PRES is rarely reported. Herein, we report a case of a 51-year-old female with a history of metastatic gastric cancer who developed seizures while being treated with trastuzumab, and neuroimaging confirmed the diagnosis of PRES.

11.
Mol Clin Oncol ; 8(5): 637-639, 2018 May.
Article in English | MEDLINE | ID: mdl-29725528

ABSTRACT

Burkitt lymphoma is cytogenetically characterized by t(8;14)(q24;q32) translocation, sometimes accompanied by additional cytogenetic abnormalities. These abnormalities usually result in more aggressive clinical presentation and morphology of the disease. The current report presens a case of Burkitt lymphoma with t(8;14)(q24;q32) accompanied by partial tetrasomy of chromosome 1(47,XY,+1,i(1)(q10),t(8;14)(q24;q32)[2]/46,XY[18]). The patient was a 59-year-old male who presented with abdominal pain, leukocytosis and tumor lysis syndrome. No lymphadenopathy was noted. Cerebrospinal fluid analysis revealed atypical lymphocytes. A peripheral blood smear revealed tumor cells exhibiting distinct 'blastoid' morphology: Prominent nucleoli, basophilic cytoplasm, occasional cytoplasmic vacuoles. Flow cytometry demonstrated B cells expressing cluster of differentiation (CD)10 and cytoplasmic kappa light chain restriction without surface expression of immunoglobulins and CD20. A bone marrow biopsy revealed hematopoiesis, with a 90% replacement with atypical lymphocytes. The patient was treated with chemotherapy. Following the first cycle of treatment, the patient developed neutropenic fever, bacteremia and died a few days later. Gain of chromosome 1q in addition to characteristic for Burkitt lymphoma t(8;14)(q24;q32) resulted in immature 'blastoid' morphology and the immunophenotype of tumor cells, leukemic presentation without lymph node involvement and a highly aggressive clinical course.

12.
Contemp Clin Trials ; 70: 72-82, 2018 07.
Article in English | MEDLINE | ID: mdl-29787858

ABSTRACT

BACKGROUND: Non-daily smokers (NDS) who smoke on some but not all days are a growing subset of United States (US) tobacco users. Racial/ethnic minorities are more likely to be NDS. African American NDS have strikingly high levels of nicotine and carcinogen exposure, making treatment of this high risk group a priority. METHODS: The current study is one of three ongoing federally-funded clinical trials of NDS and, to our knowledge the only RCT focused on racial/ethnic minority NDS. The design has been guided by input from Patient and Stakeholder Advisory Panels who helped develop the research questions, design the intervention, and select the outcomes. The objective is to compare the effectiveness of smoking cessation counseling alone (C) or smoking cessation counseling plus participant's choice of nicotine replacement therapy (NRT; C + NRT) for African American NDS. Two-hundred seventy-eight African American NDS will be randomized in a 2:1 fashion to C + NRT or C. All participants receive five sessions of smoking cessation counseling; those randomized to C + NRT receive their choice of nicotine gum, patch, and/or lozenge. Treatment in both groups lasts for 12 weeks. We hypothesize that C + NRT will be more effective than C on the primary outcome of biochemically-confirmed abstinence from smoking at week 12. Secondary aims will compare C + NRT and C on patient- and provider-desired outcomes including abstinence from smoking at week 26, change in biochemically-verified nicotine and carcinogen exposure, days abstinent, and treatment process measures (e.g., NRT use and side effects). Predictors of abstinence will also be explored. DISCUSSION: Findings will illuminate effective treatment options for African American NDS and contribute to development of evidence-based guidelines for treating the 8.9 million US adult NDS for whom no guidelines currently exist. TRIAL REGISTRATION NUMBER: ClinicalTrials.gov: NCT02244918.


Subject(s)
Black or African American , Counseling , Nicotine/therapeutic use , Smoking Cessation Agents/therapeutic use , Smoking Cessation/methods , Smoking/therapy , Adolescent , Adult , Black or African American/psychology , Aged , Aged, 80 and over , Combined Modality Therapy , Drug Administration Schedule , Female , Follow-Up Studies , Humans , Kansas/epidemiology , Male , Middle Aged , Research Design , Smoking/ethnology , Smoking/psychology , Smoking Cessation/ethnology , Treatment Outcome , Young Adult
13.
Acta Haematol ; 139(2): 84-88, 2018.
Article in English | MEDLINE | ID: mdl-29408811

ABSTRACT

Low-grade follicular lymphomas are genetically characterized by the translocation t(14; 18)(q32;q21) with BCL2 gene rearrangements. Marginal zone lymphomas are often associated with translocations or transcriptional deregulations of the MALT gene. We report 2 cases of lymphomas which harbor both the t(14;18)(q32;q21) translocation and MALT gene upregulation. Patients presented with numerous circulating atypical lymphocytes. Lymph node biopsy in both cases on HE staining demonstrated vague nodularity readily highlighted by CD10, CD23, or BCL6. Staining with CD20 and BCL2 demonstrated monotonous diffuse effacement of normal architecture with tumor cells without obvious follicular structures. Morphologically, tumor cells were consistent with centrocytes. Bone marrow biopsy demonstrated a combined peritrabecular and interstitial distribution of the tumor cells. These cases present substantial difficulties for diagnosis and classification. Clinical and morphological features were mostly consistent with follicular lymphoma, with a few features more often seen in marginal zone lymphomas (leukemic presentation, no CD10 in circulating cells, interstitial location of tumor cells in bone marrow); therefore, these cases were finally classified as follicular lymphoma grade I. Both patients were treated with standard chemotherapy regimens for follicular and nongastric MALT lymphomas with a good response to date.


Subject(s)
Lymphoma, B-Cell, Marginal Zone/diagnosis , Lymphoma, B-Cell/diagnosis , Lymphoma, Follicular/diagnosis , Adult , Biomarkers , Biopsy , Bone Marrow/pathology , Diagnosis, Differential , Female , Humans , Immunohistochemistry , In Situ Hybridization, Fluorescence , Lymph Nodes/pathology , Lymphoma, B-Cell/genetics , Lymphoma, B-Cell, Marginal Zone/genetics , Lymphoma, Follicular/genetics , Middle Aged , Symptom Assessment , Translocation, Genetic
14.
Contemp Clin Trials Commun ; 5: 72-79, 2017 Mar.
Article in English | MEDLINE | ID: mdl-29740623

ABSTRACT

Fewer than 5% of cancer patients participate in clinical trials, making it challenging to test new therapies or interventions for cancer. Even within that small number, patients living in inner-city and rural areas are underrepresented in clinical trials. This study explores cancer patients' awareness and perceptions of cancer clinical trials, as well as their perceptions of patient-provider interactions related to discussing cancer clinical trials in order to improve accrual in cancer clinical trials. Interviews with 66 former and current in inner-city and rural cancer patients revealed a lack of awareness and understanding about clinical trials, as well as misconceptions about what clinical trials entail. Findings also revealed that commercials and television shows play a prominent role in forming inner-city and rural patients' attitudes and/or misconceptions about clinical trials. However, rural patients were more likely to hold unfavorable views about clinical trials than inner-city patients. Patient-provider discussions emerged as being crucial for increasing awareness of clinical trials among patients and recruiting them to trials. Findings from this study will inform communication strategies to enhance recruitment to cancer clinical trials by increasing awareness and countering misconceptions about clinical trials.

15.
Int J Cancer ; 139(6): 1281-8, 2016 Sep 15.
Article in English | MEDLINE | ID: mdl-27176735

ABSTRACT

Statins have shown antineoplastic properties in preclinical studies with breast cancer cells. They inhibit the enzyme "HMG CoA reductase" and the expression of this enzyme in cancer cells has been implicated as a favorable prognostic factor in patients with breast cancer. After a search of MEDLINE and Embase from inception through November 2015, 817 abstracts were reviewed to identify studies that described an association between statin use and outcomes in breast cancer. A total of 14 studies which included 75,684 women were identified. In a meta-analysis of 10 studies, statin use was associated with improved recurrence-free survival (RFS; HR 0.64; 95% CI 0.53-0.79, I(2) = 44%). Furthermore, this RFS benefit appeared to be confined to use of lipophilic statins (HR 0.72; 95% CI 0.59-0.89) as hydrophilic statin use was not associated with improvement in RFS (HR 0.80; 95% CI 0.44-1.46). Statin users similarly showed improved overall survival in a meta-analysis with substantial heterogeneity (8 studies, HR 0.66; 95% CI 0.44-0.99, I(2) = 89%). Statin users also had improved cancer-specific survival, although this relationship was measured with less precision (six studies, HR 0.70; 95% CI 0.46-1.06, I(2) = 86%). In conclusion, breast cancer patients who use statins, or specifically, lipophilic statins show improved recurrence-free survival. Statin users also had improved overall survival and cancer-specific survival. These findings should be assessed in a prospective randomized cohort and the choice of statin, dose and biomarkers that may predict the efficacy of these drugs should be identified.


Subject(s)
Breast Neoplasms/mortality , Breast Neoplasms/pathology , Hydroxymethylglutaryl-CoA Reductase Inhibitors/adverse effects , Breast Neoplasms/epidemiology , Breast Neoplasms/therapy , Europe , Female , Humans , Mortality , North America , Proportional Hazards Models , Publication Bias , Recurrence , Survival Analysis
16.
Int J Clin Exp Pathol ; 8(8): 9602-8, 2015.
Article in English | MEDLINE | ID: mdl-26464726

ABSTRACT

Double-hit lymphomas (DHL) are defined as B-cell lymphoma with a chromosomal breakpoint affecting the MYC/8q24 locus in combination with rearrangement at (14;18)(q32;q21). We recently observed three cases of B-cell lymphoma with an extra intact MYC signal in association with the t(14;18)(q32;q21) translocation. The impact of an extra copy of MYC to the clinical course and prognosis of one patient with Diffuse Large B Cell Lymphoma (DLBCL) and two patients with Follicular Lymphoma (FL) was evaluated. Flow cytometry in all cases demonstrated lambda- or kappa-light chain restricted CD20 and CD10 positive neoplastic B cells. FISH analysis was negative for MYC gene rearrangement but demonstrated an extra copy of intact MYC. Tissue sections displayed typical starry sky "gray zone" lymphoma morphology in case of DLBCL and FL morphology in cases 2 and 3, with high Ki67 labeling in all three cases. All patients responded well to initial chemotherapy although displayed variant outcome after initial remission. The patient with DLBCL deceased within a year of diagnosis while the other two patients with FL showed much better overall survival. Our limited experience showed that additional copy of intact MYC may be equivalent to "classic" DHL on the background of DLBCL with additional cytogenetic abnormalities, however isolated t(14;18)(q32;q21) translocation in combination with additional copy of intact MYC may demonstrate histology and clinical outcome more comparable with "classic" low grade follicular lymphoma, albeit with more aggressive morphology.


Subject(s)
Chromosomes, Human, Pair 14 , Chromosomes, Human, Pair 18 , Genes, myc/genetics , Lymphoma, B-Cell/genetics , Lymphoma, B-Cell/pathology , Aged , Chromosomes, Human, Pair 14/genetics , Chromosomes, Human, Pair 18/genetics , Flow Cytometry , Gene Rearrangement , Humans , Immunohistochemistry , Immunophenotyping , In Situ Hybridization, Fluorescence , Male , Middle Aged
17.
Ann Diagn Pathol ; 19(3): 113-6, 2015 Jun.
Article in English | MEDLINE | ID: mdl-25787243

ABSTRACT

BRAF V600E mutations have been reported in several histiocytic and dendritic cell neoplasms. In this case series, we report BRAF V600E-positive histiocytic and dendritic cell neoplasms in association with lymphomas and lymphoid proliferations. This is a review of cases with immunohistochemistry for BRAF V600E, with additional immunohistochemistry to categorize tumors. We report the first case of BRAF V600E-positive indeterminate cell tumor in association with angioimmunoblastic T-cell lymphoma. We also report a case of BRAF V600E-positive interdigitating dendritic cell sarcoma in a patient with positive B-cell polymerase chain reaction. It is unclear if these neoplasms developed as transdifferentiation of lymphoid neoplasms or if they developed independently. These cases illustrate the expanding spectrum of BRAF V600E-positive histiocytic and dendritic cell tumors and suggest that attention should be paid to lymphomas for possible coincident presentation of these disorders.


Subject(s)
Dendritic Cell Sarcoma, Interdigitating/enzymology , Proto-Oncogene Proteins B-raf/metabolism , B-Lymphocytes/enzymology , B-Lymphocytes/pathology , Cell Transdifferentiation/physiology , Dendritic Cell Sarcoma, Interdigitating/genetics , Dendritic Cell Sarcoma, Interdigitating/pathology , Female , Flow Cytometry , Histiocytosis, Langerhans-Cell/enzymology , Histiocytosis, Langerhans-Cell/genetics , Histiocytosis, Langerhans-Cell/pathology , Humans , Immunohistochemistry , Lymphoma, T-Cell/enzymology , Lymphoma, T-Cell/pathology , Male , Middle Aged , Mutation , Polymerase Chain Reaction
18.
Hosp Pract (1995) ; 42(3): 68-74, 2014 Aug.
Article in English | MEDLINE | ID: mdl-25255408

ABSTRACT

Until about 4 years ago, warfarin was the only oral anticoagulant approved in the United States, and switching between oral anticoagulants has become an option since the emergence of the novel oral anticoagulants dabigatran, rivaroxaban, and apixaban. What are the reasons one may switch between the agents and how is this done? Discussed in this article are the 4 agents approved in the United States, their characteristics, reasons one may switch, and methods for conversion. After a thorough search of original trial data and recent expert review articles, we have summarized the most recent recommendations below and briefly discuss upcoming oral anticoagulants that show promise.


Subject(s)
Anticoagulants/therapeutic use , Atrial Fibrillation/complications , Stroke/etiology , Stroke/prevention & control , Administration, Oral , Anticoagulants/administration & dosage , Anticoagulants/adverse effects , Benzimidazoles/therapeutic use , Dabigatran , Humans , Morpholines/therapeutic use , Pyrazoles/therapeutic use , Pyridines/therapeutic use , Pyridones/therapeutic use , Rivaroxaban , Thiazoles/therapeutic use , Thiophenes/therapeutic use , United States , Warfarin/therapeutic use , beta-Alanine/analogs & derivatives , beta-Alanine/therapeutic use
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