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  1. Article ; Online: Hydrophilic polymer embolus in the bone marrow.

    Rangan, Aruna / Norgan, Andrew P

    Blood

    2023  Volume 142, Issue 10, Page(s) 939

    MeSH term(s) Bone Marrow/pathology ; Humans ; Polymers
    Chemical Substances Polymers
    Language English
    Publishing date 2023-09-05
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 80069-7
    ISSN 1528-0020 ; 0006-4971
    ISSN (online) 1528-0020
    ISSN 0006-4971
    DOI 10.1182/blood.2023021763
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Morphologic and Clinical Features of Acute on Chronic Valproate Toxicity.

    Rangan, Aruna / Herrick, Jennifer L

    Mayo Clinic proceedings

    2022  Volume 97, Issue 9, Page(s) 1692–1693

    MeSH term(s) Anticonvulsants/adverse effects ; Humans ; Valproic Acid/adverse effects
    Chemical Substances Anticonvulsants ; Valproic Acid (614OI1Z5WI)
    Language English
    Publishing date 2022-06-23
    Publishing country England
    Document type Journal Article
    ZDB-ID 124027-4
    ISSN 1942-5546 ; 0025-6196
    ISSN (online) 1942-5546
    ISSN 0025-6196
    DOI 10.1016/j.mayocp.2022.06.004
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Daratumumab and brentuximab vedotin combination therapy in T-cell acute lymphoblastic leukemia refractory to conventional chemotherapy and allogeneic stem cell transplant.

    Begna, Kebede H / Abdallah, Nadine H / Janania-Martinez, Michelle / Mangaonkar, Abhishek A / Rangan, Aruna / Herrick, Jennifer L / Gangat, Naseema

    Haematologica

    2024  Volume 109, Issue 2, Page(s) 689–692

    MeSH term(s) Humans ; Brentuximab Vedotin ; Stem Cell Transplantation ; Hematopoietic Stem Cell Transplantation ; Precursor Cell Lymphoblastic Leukemia-Lymphoma/drug therapy ; T-Lymphocytes ; Immunoconjugates/therapeutic use ; Antibodies, Monoclonal
    Chemical Substances Brentuximab Vedotin (7XL5ISS668) ; daratumumab (4Z63YK6E0E) ; Immunoconjugates ; Antibodies, Monoclonal
    Language English
    Publishing date 2024-02-01
    Publishing country Italy
    Document type Journal Article
    ZDB-ID 2333-4
    ISSN 1592-8721 ; 0017-6567 ; 0390-6078
    ISSN (online) 1592-8721
    ISSN 0017-6567 ; 0390-6078
    DOI 10.3324/haematol.2023.283740
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Immunohistochemistry for LEF1 and SOX11 adds diagnostic specificity in small B-cell lymphomas.

    Rangan, Aruna / Reinig, Erica / McPhail, Ellen D / Rech, Karen L

    Human pathology

    2022  Volume 121, Page(s) 29–35

    Abstract: Lymphocyte enhancer-binding factor 1 (LEF1) and SRY-Box 11 (SOX11) are highly sensitive and specific for chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) and mantle cell lymphoma (MCL) including the cyclin D1-negative subtype, ... ...

    Abstract Lymphocyte enhancer-binding factor 1 (LEF1) and SRY-Box 11 (SOX11) are highly sensitive and specific for chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) and mantle cell lymphoma (MCL) including the cyclin D1-negative subtype, respectively. We assessed the utility of these markers in a large cohort of small B-cell lymphomas (SBCLs) on varied sample types. Immunohistochemistry (IHC) was performed for LEF1 and SOX11 on 354 SBCLs (129 CLL/SLLs, 33 MCLs, 142 marginal zone lymphomas [MZLs]-nodal MZL [NMZL]: 40, extranodal MZL [ENMZL]: 28, splenic MZL [SMZL]: 74 cases-and 50 lymphoplasmacytic lymphomas [LPLs]/Waldenstrom macroglobulinemias [WMs]). Ninety-eight percent of CLL/SLLs were LEF1 positive. SOX11 showed good sensitivity (82%) and excellent specificity for MCL (99%), with only 2 of 142 MZLs (both SMZLs) showing SOX11 expression. The low sensitivity for SOX11 was on account of inclusion of 4 non-nodal cases. All 50 LPL/WMs were negative for both LEF1 and SOX11. The expression of SOX11 and LEF1 was not always mutually exclusive, as 2 confirmed MCLs expressed both markers. LEF1 and SOX11 have excellent utility as diagnostic markers especially for atypical CD5-positive SBCLs.
    MeSH term(s) Adult ; Humans ; Immunohistochemistry ; Leukemia, Lymphocytic, Chronic, B-Cell/pathology ; Lymphocytes/pathology ; Lymphoid Enhancer-Binding Factor 1 ; Lymphoma, B-Cell, Marginal Zone/diagnosis ; Lymphoma, B-Cell, Marginal Zone/pathology ; Lymphoma, Mantle-Cell/pathology ; SOXC Transcription Factors ; Waldenstrom Macroglobulinemia
    Chemical Substances LEF1 protein, human ; Lymphoid Enhancer-Binding Factor 1 ; SOX11 protein, human ; SOXC Transcription Factors
    Language English
    Publishing date 2022-01-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 207657-3
    ISSN 1532-8392 ; 0046-8177
    ISSN (online) 1532-8392
    ISSN 0046-8177
    DOI 10.1016/j.humpath.2022.01.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Myeloid malignancies in cancer patients treated with poly(ADP-ribose) polymerase (PARP) inhibitors: a case series.

    Oliveira, Jennifer L / Greipp, Patricia T / Rangan, Aruna / Jatoi, Aminah / Nguyen, Phuong L

    Blood cancer journal

    2022  Volume 12, Issue 1, Page(s) 11

    MeSH term(s) Aged ; Bone Marrow/pathology ; Cytogenetic Analysis ; Female ; Humans ; Leukemia, Myeloid, Acute/chemically induced ; Leukemia, Myeloid, Acute/genetics ; Leukemia, Myeloid, Acute/pathology ; Middle Aged ; Myelodysplastic Syndromes/chemically induced ; Myelodysplastic Syndromes/genetics ; Myelodysplastic Syndromes/pathology ; Neoplasms/drug therapy ; Poly(ADP-ribose) Polymerase Inhibitors/adverse effects ; Poly(ADP-ribose) Polymerase Inhibitors/therapeutic use
    Chemical Substances Poly(ADP-ribose) Polymerase Inhibitors
    Language English
    Publishing date 2022-01-25
    Publishing country United States
    Document type Case Reports ; Letter
    ZDB-ID 2600560-8
    ISSN 2044-5385 ; 2044-5385
    ISSN (online) 2044-5385
    ISSN 2044-5385
    DOI 10.1038/s41408-022-00607-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Mott cell (Russell body) Barrett's esophagitis.

    Rangan, Aruna / Visscher, Daniel W

    Blood

    2016  Volume 128, Issue 15, Page(s) 1992

    MeSH term(s) Aged, 80 and over ; Barrett Esophagus/pathology ; Esophageal Mucosa/pathology ; Gastroenteritis/pathology ; Humans ; Inclusion Bodies/pathology ; Male
    Language English
    Publishing date 2016-10-12
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 80069-7
    ISSN 1528-0020 ; 0006-4971
    ISSN (online) 1528-0020
    ISSN 0006-4971
    DOI 10.1182/blood-2016-06-724344
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: A Large Retroperitoneal Mass in an Asymptomatic 22-Year-Old Man.

    Anderson, Bradley / Rangan, Aruna / Sweetser, Seth

    Gastroenterology

    2017  Volume 153, Issue 5, Page(s) 1200–1202

    Language English
    Publishing date 2017-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80112-4
    ISSN 1528-0012 ; 0016-5085
    ISSN (online) 1528-0012
    ISSN 0016-5085
    DOI 10.1053/j.gastro.2017.08.032
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  8. Article: Nodular Lymphocyte Predominant Hodgkin Lymphoma of the Ileum.

    Rangan, Aruna / Grahn, Sarah W / Feldman, Andrew L

    Case reports in pathology

    2017  Volume 2017, Page(s) 5981013

    Abstract: Nodular lymphocyte predominant Hodgkin lymphoma (NLPHL) is a rare lymphoma derived from germinal center B lymphocytes that typically presents with localized lymph node involvement and can mimic a variety of both reactive and other neoplastic conditions. ... ...

    Abstract Nodular lymphocyte predominant Hodgkin lymphoma (NLPHL) is a rare lymphoma derived from germinal center B lymphocytes that typically presents with localized lymph node involvement and can mimic a variety of both reactive and other neoplastic conditions. Extranodal involvement is uncommon in NLPHL and typically occurs in the context of previously documented or synchronous nodal disease. Involvement of the gastrointestinal tract is exceedingly rare. Here, we present the first case to our knowledge of NLPHL involving the ileum that was discovered incidentally on routine screening colonoscopy in an asymptomatic patient. An awareness of the spectrum of clinical presentations, careful morphologic evaluation, and a comprehensive panel of immunohistochemical stains are essential for correct diagnosis of NLPHL presenting in unusual anatomic sites.
    Language English
    Publishing date 2017-11-02
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2648758-5
    ISSN 2090-679X ; 2090-6781
    ISSN (online) 2090-679X
    ISSN 2090-6781
    DOI 10.1155/2017/5981013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Genetic and Clinical Studies of Patients With Increased Multinucleated Megakaryocytes in Bone Marrow as an Isolated Finding: A Diagnostic Pitfall for Myelodysplastic Syndrome.

    Zheng, Gang / He, Rong / Reichard, Kaaren K / Peterson, Jess F / Olteanu, Horatiu / Oliveira, Jennifer L / Rangan, Aruna / Chen, Dong / Shi, Min

    The American journal of surgical pathology

    2021  Volume 45, Issue 11, Page(s) 1534–1540

    Abstract: The presence of increased multinucleated megakaryocytes (aka osteoclast-like) is considered a dysplastic feature in myelodysplastic syndrome; however, its clinical significance in isolation is uncertain. Herein, we report the clinicopathologic and ... ...

    Abstract The presence of increased multinucleated megakaryocytes (aka osteoclast-like) is considered a dysplastic feature in myelodysplastic syndrome; however, its clinical significance in isolation is uncertain. Herein, we report the clinicopathologic and genetic features of 18 such cases of 40,539 bone marrow biopsies spanning 10 years. All 18 patients had ≥25% multinucleated megakaryocytes in otherwise normal bone marrow biopsies, which were evaluated for plasma cell neoplasms (n=9), lymphoma (n=4), or anemia/neutropenia (n=5). None of the 17 patients tested showed acquired cytogenetic abnormalities. Sixteen patients underwent targeted gene panel next-generation sequencing: 9 patients had no pathogenic mutations; 3 harbored a single pathogenic mutation with variant allele frequencies of 7.5%, 7.6%, and 10.7%, likely representing clonal hematopoiesis of indeterminate potential; 1 had 2 pathogenic mutations, 1 of which had a variant allele frequency >20%. Fourteen of 18 patients had a follow-up period >6 months (median: 36.5 mo, range: 7 to 110 mo) and no patients developed a new-onset cytopenia, a progressive cytopenia, or a myeloid neoplasm. The patient with 2 mutations had persistent anemia, worrisome for an emerging MDS. However, given the absence of thrombocytopenia, increased multinucleated megakaryocytes in this patient could be an unrelated incidental finding. Our study indicates that increased multinucleated megakaryocytes as an isolated finding is a rare phenomenon, and this sole morphologic finding is not diagnostic of myelodysplastic syndrome. Diagnostic approaches in the presence of increased multinucleated megakaryocytes are proposed based on different clinical and pathologic scenarios.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Biopsy ; Bone Marrow/pathology ; Bone Marrow Examination ; Chromosome Aberrations ; Cytogenetic Analysis ; DNA Mutational Analysis ; Diagnosis, Differential ; Female ; Genetic Predisposition to Disease ; Humans ; Male ; Megakaryocytes/pathology ; Middle Aged ; Mutation ; Myelodysplastic Syndromes/genetics ; Myelodysplastic Syndromes/pathology ; Phenotype ; Predictive Value of Tests ; Prognosis
    Language English
    Publishing date 2021-05-13
    Publishing country United States
    Document type Journal Article
    ZDB-ID 752964-8
    ISSN 1532-0979 ; 0147-5185
    ISSN (online) 1532-0979
    ISSN 0147-5185
    DOI 10.1097/PAS.0000000000001732
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  10. Article ; Online: εγ-Thalassemia, a New Hemoglobinopathy Category.

    Oliveira, Jennifer L / Thompson, Christineil H / Saravanaperumal, Siva Arumugam / Koganti, Tejaswi / Jenkinson, Garrett / Hein, Molly S / Kohorst, Mira A / Hasadsri, Linda / Nguyen, Phuong L / Matern, Dietrich / Kipp, Benjamin R / Klee, Eric W / Wieben, Eric D / Hoyer, James D / Rangan, Aruna

    Clinical chemistry

    2023  Volume 69, Issue 7, Page(s) 711–717

    Abstract: Background: Large β-globin gene cluster deletions (hereditary persistence of fetal hemoglobin [Hb] or β-, δβ-, γδβ-, and ϵγδβ-thalassemia), are associated with widely disparate phenotypes, including variable degrees of microcytic anemia and Hb F levels. ...

    Abstract Background: Large β-globin gene cluster deletions (hereditary persistence of fetal hemoglobin [Hb] or β-, δβ-, γδβ-, and ϵγδβ-thalassemia), are associated with widely disparate phenotypes, including variable degrees of microcytic anemia and Hb F levels. When present, increased Hb A2 is used as a surrogate marker for β-thalassemia. Notably, ϵγδβ-thalassemias lack the essential regulatory locus control region (LCR) and cause severe transient perinatal anemia but normal newborn screen (NBS) results and Hb A2 levels. Herein, we report a novel deletion of the ϵ, Aγ, Gγ, and ψβ loci with intact LCR, δ-, and β-regions in 2 women and newborn twins.
    Methods: Capillary electrophoresis (CE), high-performance liquid chromatography (HPLC), DNA sequencing, multiplex ligation-dependent probe amplification (MLPA), gap-polymerase chain reaction (gap-PCR), and long-read sequencing (LRS) were performed.
    Results: NBS showed an Hb A > Hb F pattern for both twins. At 20 months, Hb A2 was increased similarly to that in the mother and an unrelated woman. Unexplained microcytosis was absent and the twins lacked severe neonatal anemia. MLPA, LRS, and gap-PCR confirmed a 32 599 base pair deletion of ϵ (HBE1) through ψβ (HBBP1) loci.
    Conclusions: This deletion represents a hemoglobinopathy category with a distinct phenotype that has not been previously described, an ϵγ-thalassemia. Both the NBS Hb A > F pattern and the subsequent increased Hb A2 without microcytosis are unusual. A similar deletion should be considered when this pattern is encountered and appropriate test methods selected for detection. Knowledge of the clinical impact of this new category will improve genetic counselling, with distinction from the severe transient anemia associated with ϵγδβ-thalassemia.
    MeSH term(s) Humans ; Female ; Thalassemia/genetics ; Hemoglobinopathies ; beta-Thalassemia/diagnosis ; beta-Thalassemia/genetics ; Fetal Hemoglobin/genetics ; Multiplex Polymerase Chain Reaction
    Chemical Substances Fetal Hemoglobin (9034-63-3)
    Language English
    Publishing date 2023-04-22
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 80102-1
    ISSN 1530-8561 ; 0009-9147
    ISSN (online) 1530-8561
    ISSN 0009-9147
    DOI 10.1093/clinchem/hvad038
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