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https://www.readbyqxmd.com/read/28302711/precision-and-prognostic-value-of-clone-specific-minimal-residual-disease-in-acute-myeloid-leukemia
#1
Pierre Hirsch, Ruoping Tang, Nassera Abermil, Pascale Flandrin, Hannah Moatti, Fabrizia Favale, Ludovic Suner, Florence Lorre, Christophe Marzac, Fanny Fava, Anne-Claire Mamez, Simona Lapusan, Françoise Isnard, Mohamad Mohty, Ollivier Legrand, Luc Douay, Chrystele Bilhou-Nabera, François Delhommeau
The genetic landscape of adult acute myeloid leukemias has been recently unraveled. However, due to their genetic heterogeneity, only a handful of markers are currently used for the evaluation of minimal residual disease. Recent studies using multi-target strategies indicate that detection of residual mutations in less than 5% of cells in complete remission is associated with a better survival. Here, in a series of 69 acute myeloid leukemias with known clonal architecture, we design a clone-specific strategy based on fluorescent in situ hybridization and high-sensitivity next generation sequencing to detect chromosomal aberrations and mutations, respectively, in follow-up samples...
March 16, 2017: Haematologica
https://www.readbyqxmd.com/read/28296991/clinicopathologic-immunohistochemical-and-molecular-features-of-histiocytoid-sweet-syndrome
#2
Victoria Alegría-Landa, Socorro María Rodríguez-Pinilla, Angel Santos-Briz, José Luis Rodríguez-Peralto, Victor Alegre, Lorenzo Cerroni, Heinz Kutzner, Luis Requena
Importance: Histiocytoid Sweet syndrome is a rare histopathologic variant of Sweet syndrome. The nature of the histiocytoid infiltrate has generated considerable controversy in the literature. Objective: The main goal of this study was to conduct a comprehensive overview of the immunohistochemical phenotype of the infiltrate in histiocytoid Sweet syndrome. We also analyze whether this variant of Sweet syndrome is more frequently associated with hematologic malignancies than classic Sweet syndrome...
March 15, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28295914/development-of-a-gastric-carcinoid-tumor-following-allogeneic-hematopoietic-stem-cell-transplantation-for-early-t-cell-precursor-acute-lymphoblastic-leukemia
#3
Tsung-Yen Chang, Jin-Yao Lai, Chao-Jan Wang, Shih-Yen Chen, Tang-Her Jaing, Chuen Hsueh, Lee-Yung Shih, Shih-Hsiang Chen
Gastric carcinoid tumor is rarely diagnosed in children. We report a case of gastric carcinoid tumor that occurred after allogeneic HSCT. A 13-year-old girl with ETP acute lymphoblastic leukemia underwent allogeneic HSCT from a 7/8 HLA-matched unrelated donor. She presented with rashes, abdominal pain, and diarrhea, which were suggestive of GVHD, 7 months after HSCT. Immunosuppressive agents failed to resolve these symptoms well. After a series of evaluations, carcinoid syndrome caused by a gastric carcinoid tumor was diagnosed...
March 11, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28271998/myeloid-sarcoma-as-the-first-sign-of-progression-of-chronic-myeloid-leukemia-in-medullary-chronic-phase-experience-from-a-tertiary-cancer-centre-in-southern-india
#4
(no author information available yet)
INTRODUCTION: Myeloid sarcoma (MS) in chronic myeloid leukemia (CML) is a rare entity which is suggestive of advanced phase of the disease and poorer outcomes. There is little data in literature available regarding its presentation in medullary chronic phase (CP) as well as outcomes in the era of tyrosine kinase inhibitors (TKI) and needs to be carefully evaluated as it can present the first sign of progressive disease before haematological progression. METHODS: We identified cases of MS presenting with medullary CML-CP from January 2002 to December 2015...
January 2017: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/28253536/myeloid-neoplasms-with-concurrent-bcr-abl1-and-cbfb-rearrangements-a-series-of-10-cases-of-a-clinically-aggressive-neoplasm
#5
Alireza Salem, Sanam Loghavi, Guilin Tang, Yang O Huh, Elias J Jabbour, Hagop Kantarjian, Wei Wang, Shimin Hu, Rajyalakshmi Luthra, L Jeffrey Medeiros, Joseph D Khoury
Chronic myeloid leukemia (CML) is defined by the presence of t(9;22)(q34;q11.2)/BCR-ABL1. Additional chromosomal abnormalities confer an adverse prognosis and are particularly common in the blast phase of CML (CML-BP). CBFB rearrangement, particularly CBFB-MYH11 fusion resulting from inv(16)(p13.1q22) or t(16;16)(p13.1;q22), is an acute myeloid leukemia (AML)-defining alteration that is associated with a favorable outcome. The co-occurrence of BCR-ABL1 and CBFB rearrangement is extremely rare, and the significance of this finding remains unclear...
March 2, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28249016/hla-specificities-are-associated-with-prognosis-in-ighv-mutated-cll-like-high-count-monoclonal-b-cell-lymphocytosis
#6
María García-Álvarez, Miguel Alcoceba, Miriam López-Parra, Noemí Puig, Alicia Antón, Ana Balanzategui, Isabel Prieto-Conde, Cristina Jiménez, María E Sarasquete, M Carmen Chillón, María Laura Gutiérrez, Rocío Corral, José María Alonso, José Antonio Queizán, Julia Vidán, Emilia Pardal, María Jesús Peñarrubia, José M Bastida, Ramón García-Sanz, Luis Marín, Marcos González
INTRODUCTION: Molecular alterations leading progression of asymptomatic CLL-like high-count monoclonal B lymphocytosis (hiMBL) to chronic lymphocytic leukemia (CLL) remain poorly understood. Recently, genome-wide association studies have found 6p21.3, where the human leukocyte antigen (HLA) system is coded, to be a susceptibility risk region for CLL. Previous studies have produced discrepant results regarding the association between HLA and CLL development and outcome, but no studies have been performed on hiMBL...
2017: PloS One
https://www.readbyqxmd.com/read/28222315/allylic-isothiouronium-salts-the-discovery-of-a-novel-class-of-thiourea-analogues-with-antitumor-activity
#7
Misael Ferreira, Laura Sartori Assunção, Adny Henrique Silva, Fabíola Branco Filippin-Monteiro, Tânia Beatriz Creczynski-Pasa, Marcus Mandolesi Sá
A series of 28 aryl- and alkyl-substituted isothiouronium salts were readily synthesized in high yields through the reaction of allylic bromides with thiourea, N-monosubstituted thioureas or thiosemicarbazide. The S-allylic isothiouronium salts substituted with aliphatic groups were found to be the most effective against leukemia cells. These compounds combine high antitumor activity and low toxicity toward non-tumoral cells, with selectivity index higher than 20 in some cases. Furthermore, the selected isothiouronium salts induced G2/M cell cycle arrest and cell death, possibly by apoptosis...
March 31, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28218826/synthesis-and-antiproliferative-effect-of-ethyl-4-4-substitutedpiperidin-1-yl-benzylpyrrolo-1-2-a-quinoxaline-carboxylate-derivatives-on-human-leukemic-cells
#8
Jean Guillon, Vanessa Desplat, Marian Vincenzi, Romain Lucas, Stéphane Moreau, Solène Savrimoutou, Noel Pinaud, David Bigat, Elodie Enriquez, Mathieu Marchivie, Sylvain Routier, Pascal Sonnet, Filomena Rossi, Luisa Ronga
Acute leukemia is a hematological malignancy with high incidence and recurrence rates, and is characterized by an accumulation of blasts in bone marrow due to proliferation of immature lymphoid or myeloid cells associated with a blockade of differentiation. The heterogeneity of leukemia led to look for new specific molecules for leukemia subtypes or even for therapy-resistant cases. Among heterocyclic derivatives that attracted attention due to their large spread biological activities, we have focused our interest towards the pyrrolo[1,2-a]quinoxaline heterocyclic framework that has been previously identified as an interesting scaffold for antiproliferative activities against various human cancer cell lines...
February 20, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28195090/mixed-phenotypic-acute-leukemia-series-from-tertiary-care-center
#9
Ravikiran N Pawar, Sambhunath Banerjee, Subhajit Bramha, Shekhar Krishnan, Arpita Bhattacharya, Vaskar Saha, Anupam Chakrapani, Saurabh Bhave, Mammen Chandy, Reena Nair, Mayur Parihar, Neeraj Arora, D K Mishra
INTRODUCTION: Mixed-phenotype acute leukemias (MPALs) are a heterogeneous group of rare leukemias constituting approximately 2%-5% of all leukemias, in which assigning a single lineage of origin is not possible. They are diagnosed by either the presence of antigens of more than one lineage or by the presence of dual population of blasts belonging to two or more lineages. We highlight the clinicopathological, immunophenotype, and genetic data of a cohort (n = 14) of patients diagnosed and treated at our center...
January 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28187524/phenotypic-characterization-of-trisomy-12-monoclonal-b-cell-lymphocytosis
#10
Marc Sorigue, Clara Maluquer, Jordi Junca
BACKGROUND: Trisomy 12 chronic lymphocytic leukemia (CLL) is phenotypically different from the rest of CLL cytogenetic subgroups. However, it is unknown whether this is also the case for trisomy 12 CLL-phenotype monoclonal B-cell lymphocytosis (MBL). METHODS: We analyzed the expression of several markers in a series of 89 cytogenetically characterized MBL (including 17 trisomy 12 cases). Additionally, we compared the expression of these markers between trisomy 12 MBL, trisomy 12 CLL and a series of cases with trisomy 12 but fulfilling only 3 of the 5 Moreau CLL diagnostic criteria...
February 10, 2017: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/28143550/spectrum-of-paediatric-rheumatic-diseases-in-nigeria
#11
Babatunde Hakeem Olaosebikan, Olufemi Oladipo Adelowo, Barakat Adeola Animashaun, Richard Oluyinka Akintayo
BACKGROUND: Paediatric rheumatology service in Sub-Sahara African is virtually not available as there is a shortage of paediatric rheumatologists and other rheumatology health professionals. We aim to describe the clinical spectrum and the frequencies of paediatric rheumatic diseases (PRDs) in Lagos State University Teaching Hospital (LASUTH), Lagos, Nigeria. METHODS: This is a retrospective review of patients with PRDs seen over a five year period (March 2010 to February 2016) at the rheumatology clinic and children ward of LASUTH...
January 31, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/28123335/posterior-reversible-encephalopathy-syndrome-in-children-a-case-series
#12
Serhat Emeksiz, Nurettin Onur Kutlu, Hüseyin Çaksen, Gülsüm Alkan, Hülya Şeker Yıkmaz, Hüseyin Tokgöz
Posterior reversible encephalopathy syndrome is characterized by hypertension, seizure, headache, clouding of consciousness, and visual disturbance, and is diagnosed in the presence of typical lesions on magnetic resonance imaging. We retrospectively evaluated five patients who were diagnosed as having posterior reversible encephalopathy syndrome and followed up in Meram Medical Faculty, Pediatric Intensive Care and Hematology wards, between January 2010 and January 2014. We reviewed the demographic and clinical data, and neuroimaging findings...
December 2016: Türk Pediatri Arşivi
https://www.readbyqxmd.com/read/28095152/tailored-approaches-to-induction-therapy-for-acute-promyelocytic-leukemia
#13
Daniel J DeAngelo
The Oncology Grand Rounds series is designed to place original reports published in the Journal into clinical context. A case presentation is followed by a description of diagnostic and management challenges, a review of the relevant literature, and a summary of the authors' suggested management approaches. The goal of this series is to help readers better understand how to apply the results of key studies, including those published in Journal of Clinical Oncology, to patients seen in their own clinical practice...
February 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28090091/proposed-diagnostic-criteria-and-classification-of-basophilic-leukemias-and-related-disorders
#14
REVIEW
P Valent, K Sotlar, K Blatt, K Hartmann, A Reiter, I Sadovnik, W R Sperr, P Bettelheim, C Akin, K Bauer, T I George, E Hadzijusufovic, D Wolf, J Gotlib, F-X Mahon, D D Metcalfe, H-P Horny, M Arock
Basophils form a distinct cell lineage within the hematopoietic cell family. In various myeloid neoplasms, including chronic myeloid leukemia, basophilia is frequently seen. Acute and chronic basophilic leukemias, albeit rare, have also been described. However, no generally accepted criteria and classification of basophilic leukemias have been presented to date. To address this unmet need, a series of Working Conferences and other meetings were organized between March 2015 and March 2016. The current article provides a summary of consensus statements from these meetings, together with proposed criteria to delineate acute basophilic leukemia (ABL) from chronic basophilic leukemia (CBL) and primary forms of the disease where no preceding myeloid malignancy is detected, from the more common 'secondary' variants...
February 10, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28038713/expression-of-lef1-in-mantle-cell-lymphoma
#15
REVIEW
Dennis P O'Malley, John P Lee, Andrew M Bellizzi
Small lymphocytic lymphoma/chronic lymphocytic leukemia (CLL/SLL) and mantle cell lymphoma (MCL) usually are distinctly different in regard to clinical presentation, morphology, immunophenotype and molecular/genetic findings. In spite of this, select cases may show overlapping characteristics and represent a diagnostic challenge. Recently LEF1 staining was identified as a fairly characteristic finding in CLL/SLL, with positivity identified in up to 95% of cases. LEF1 staining has not been reported as being present in cases of MCL, making this stain a useful tool in distinguishing these diagnoses...
February 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28032081/philadelphia-chromosome-positive-acute-lymphoblastic-leukemia-8-years-experience-from-a-tertiary-care-center-in-india
#16
Madhav Danthala, Sadashivudu Gundeti, Laxmi Srinivas Maddali, Ashok Pillai, Krishna Chaitanya Puligundla, Raja Praveen Adusumilli
INTRODUCTION: The Philadelphia chromosome (Ph) is the most common cytogenetic abnormality associated with adult acute lymphoblastic leukemia (ALL) occurring in 20% to 40% of patients. It is also detected in 2% to 5% of children with ALL. Historically, patients with Ph-positive ALL carried a dismal prognosis, with poor response to most chemotherapy combinations, short remission durations, and long-term disease-free survival rates of 10% to 20%. The advent of tyrosine kinase inhibitors (TKIs) has revolutionized therapy of Ph-positive ALL...
October 2016: South Asian Journal of Cancer
https://www.readbyqxmd.com/read/27938958/anterior-ischemic-optic-neuropathy-and-hematologic-malignancy-a-systematic-review-of-case-reports-and-case-series
#17
REVIEW
David Cordeiro Sousa, Filipe Brogueira Rodrigues, Gonçalo Duarte, Fátima Campos, Filomena Pinto, A Vaz-Carneiro
OBJECTIVE: Demographic and clinical characteristics associated with nonarteritic anterior ischemic optic neuropathy (NAION) are well described. Patients with hematologic neoplasms may share some of these characteristics, and it may be useful clinically to better understand this set of patients. Our objective is to review systematically the characteristics of patients with both hematologic malignancies and NAION. DESIGN: Systematic review. PARTICIPANTS: Patients with NAION diagnosis related in time to a hematologic neoplasm...
December 2016: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/27914102/examining-temporal-effects-on-cancer-risk-in-the-international-nuclear-workers-study
#18
Robert D Daniels, Stephen J Bertke, David B Richardson, Elisabeth Cardis, Michael Gillies, Jacqueline A O'Hagan, Richard Haylock, Dominique Laurier, Klervi Leuraud, Monika Moissonnier, Isabelle Thierry-Chef, Ausrele Kesminiene, Mary K Schubauer-Berigan
The paper continues the series of publications from the International Nuclear Workers Study cohort that comprises 308,297 workers from France, the United Kingdom and the United States, providing 8.2 million person-years of observation from a combined follow-up period (at earliest 1944 to at latest 2005). These workers' external radiation exposures were primarily to photons, resulting in an estimated average career absorbed dose to the colon of 17.4 milligray. The association between cumulative ionizing radiation dose and cancer mortality was evaluated in general relative risk models that describe modification of the excess relative risk (ERR) per gray (Gy) by time since exposure and age at exposure...
March 15, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27905140/herpes-simplex-infection-simulating-richter-transformation-a-series-of-four-cases-and-review-of-the-literature
#19
Alireza Salem, Sanam Loghavi, Joseph D Khoury, Rose Lou Marie C Agbay, Jeffrey L Jorgensen, L Jeffrey Medeiros
AIMS: Richter transformation (RT) occurs in 5-10% of patients with chronic lymphocytic leukaemia/small lymphocytic lymphoma (CLL/SLL), and is associated with a poor outcome. The histological manifestations of RT are variable, and include an increase in the proportion of prolymphocytes, immunoblasts, and other pleomorphic cells, along with an increased proliferation rate and often necrosis. Rarely, superimposed herpes simplex virus (HSV) infection involving lymph nodes in patients with CLL/SLL may mimic RT clinically and histologically...
April 2017: Histopathology
https://www.readbyqxmd.com/read/27891349/unusual-presentation-of-acute-leukaemia-a-tripod-of-cases
#20
Manjari Kishore, Vijay Kumar, Sadhna Marwah, Abhay S Nigam
Acute Leukemia is one of the common haematological malignancies encountered with varied clinical and haematological presentation. In acute leukaemia, complications like bleeding and infection cause significant morbidity and mortality, thus overshadowing the thromboembolic events. Among the various malignant haematological disorders, the association of thromboembolic events is often noted with acute promyelocytic leukemia, though the overall frequency of such events remains very low. Acute Lymphoblastic Leukemia (ALL) is, however, more common than Acute non-lymphoblastic Leukaemia...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
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