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  1. Article ; Online: Orbital Plasmablastic Lymphoma: A Rare Variant of Diffuse Large B-Cell Lymphoma Staged and Followed Up by 18F-FDG PET/CT.

    Bansal, Himanshu / Ravina, Mudalsha / Chandrakar, Pradeep Kumar / Lukose, Tinu Thadiyananickal / Krishna, Sarin

    Clinical nuclear medicine

    2021  Volume 47, Issue 1, Page(s) e37–e38

    Abstract: Abstract: Plasmablastic lymphoma (PBL) is a rare and aggressive variant of diffuse large B-cell lymphoma which is associated with HIV infection. Recently, it has also been reported in immunocompetent and solid organ transplant patients. PBL commonly ... ...

    Abstract Abstract: Plasmablastic lymphoma (PBL) is a rare and aggressive variant of diffuse large B-cell lymphoma which is associated with HIV infection. Recently, it has also been reported in immunocompetent and solid organ transplant patients. PBL commonly presents in extranodal regions such as oral cavity, digestive tract, and skin. Orbital involvement by PBL is extremely rare with only few reports in the literature. We present a case of PBL involving the bilateral orbits in an immunocompetent patient with 1-year follow-up on 18F-FDG PET/CT scan.
    MeSH term(s) Fluorodeoxyglucose F18 ; HIV Infections ; Humans ; Lymphoma, Large B-Cell, Diffuse/diagnostic imaging ; Plasmablastic Lymphoma/diagnostic imaging ; Positron Emission Tomography Computed Tomography
    Chemical Substances Fluorodeoxyglucose F18 (0Z5B2CJX4D)
    Language English
    Publishing date 2021-06-07
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 197628-x
    ISSN 1536-0229 ; 0363-9762
    ISSN (online) 1536-0229
    ISSN 0363-9762
    DOI 10.1097/RLU.0000000000003805
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Experimental and Monte Carlo study of the effect of the presence of dry air, cortical bone inhomogeneities and source position on dose distribution of the mHDR-v2 source.

    Chandola, Rakesh M / Tiwari, Samit / Beck, Manjula / Chandrakar, Pradeep Kumar / Thakur, Suresh Kumar

    Journal of cancer research and therapeutics

    2012  Volume 8, Issue 4, Page(s) 555–560

    Abstract: Background: Recently it was data wise established that there is a considerable dose difference due to source position from the surface of the patient, and due to the presence of inhomogeneities.: Aim: It aims at to find out the dose difference due to ...

    Abstract Background: Recently it was data wise established that there is a considerable dose difference due to source position from the surface of the patient, and due to the presence of inhomogeneities.
    Aim: It aims at to find out the dose difference due to source position, and inhomogenieties in water phantom of high dose rate (HDR)(192) Ir mHDR-v2 source by experiment and by Monte Carlo (MC) simulation GEANT4 code.
    Materials and methods: The measured study of the source was done using an in-air ionization chamber, water phantom while the calculated study was done by modeling the water phantom and its water, inhomogeneities, position of source, and points of calculation.
    Results: The measured and calculated dose differences are 5.48 to 6.46% and 5.43 to 6.44% respectively higher in the presence of dry air and 4.40 to 4.90% and 4.38 to 4.88% respectively lower in the presence of cortical bone. However, for the study of the effect of source position on dose distribution, when the source was positioned at a 1 cm distance from the surface of water phantom, the near points between 1 cm and 2 cm are 2 to 3.5% and 2.1-3.7% underdose and for distant points from 3 cm to 8 cm from the source are 4 to 15% and 4.1 to 15.8% underdose for measured and calculated studies, respectively, to the dose when the source was positioned at midpoint of water phantom.
    Conclusion: These results can be used in the treatment planning system.
    MeSH term(s) Air ; Bone and Bones/radiation effects ; Humans ; Iridium Radioisotopes/therapeutic use ; Monte Carlo Method ; Phantoms, Imaging ; Radiation Dosage
    Chemical Substances Iridium Radioisotopes
    Language English
    Publishing date 2012-10
    Publishing country India
    Document type Journal Article
    ZDB-ID 2187633-2
    ISSN 1998-4138 ; 0973-1482
    ISSN (online) 1998-4138
    ISSN 0973-1482
    DOI 10.4103/0973-1482.106536
    Database MEDical Literature Analysis and Retrieval System OnLINE

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