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  1. Article: Marcada e inusual dilatación unihemisférica de los espacios de Virchow-Robin.

    Cucurella, G / Jiménez, J / Vollmer, I

    Neurologia (Barcelona, Spain)

    2008  Volume 23, Issue 1, Page(s) 52

    Title translation Marked and unusual dilatation of one hemisphere of Virchow-Robin spaces.
    MeSH term(s) Adult ; Dilatation, Pathologic ; Humans ; Magnetic Resonance Imaging ; Male ; Subarachnoid Space/pathology
    Language Spanish
    Publishing date 2008-01
    Publishing country Spain
    Document type Case Reports ; Journal Article
    ZDB-ID 1056021-x
    ISSN 1578-1968 ; 0213-4853
    ISSN (online) 1578-1968
    ISSN 0213-4853
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  2. Article ; Online: An Algorithm for Predicting the Probability of Adverse Prostatectomy Results.

    Vollmer, Robin

    American journal of clinical pathology

    2020  Volume 155, Issue 3, Page(s) 470

    MeSH term(s) Algorithms ; Humans ; Male ; Probability ; Prostate-Specific Antigen ; Prostatectomy
    Chemical Substances Prostate-Specific Antigen (EC 3.4.21.77)
    Language English
    Publishing date 2020-11-16
    Publishing country England
    Document type Journal Article ; Comment
    ZDB-ID 2944-0
    ISSN 1943-7722 ; 0002-9173
    ISSN (online) 1943-7722
    ISSN 0002-9173
    DOI 10.1093/ajcp/aqaa178
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  3. Article ; Online: Understanding the Dynamics of COVID-19.

    Vollmer, Robin

    American journal of clinical pathology

    2020  Volume 153, Issue 6, Page(s) 850–851

    MeSH term(s) Betacoronavirus/isolation & purification ; COVID-19 ; Coronavirus Infections/diagnosis ; Coronavirus Infections/epidemiology ; Coronavirus Infections/mortality ; Coronavirus Infections/transmission ; Humans ; Incidence ; Models, Statistical ; Pandemics ; Pneumonia, Viral/diagnosis ; Pneumonia, Viral/epidemiology ; Pneumonia, Viral/mortality ; Pneumonia, Viral/transmission ; SARS-CoV-2 ; Ships/statistics & numerical data
    Keywords covid19
    Language English
    Publishing date 2020-04-13
    Publishing country England
    Document type Letter
    ZDB-ID 2944-0
    ISSN 1943-7722 ; 0002-9173
    ISSN (online) 1943-7722
    ISSN 0002-9173
    DOI 10.1093/ajcp/aqaa060
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  4. Article ; Online: The Importance of Tumor Length in Needle Biopsies of the Prostate.

    Vollmer, Robin T

    American journal of clinical pathology

    2020  Volume 154, Issue 4, Page(s) 533–535

    Abstract: Objectives: To form a composite predictor variable that combines the effects of tumor length, serum prostate-specific antigen (PSA), and International Society of Urologic Pathologists (ISUP) grade on the observation of adverse prostatectomy pathology.!## ...

    Abstract Objectives: To form a composite predictor variable that combines the effects of tumor length, serum prostate-specific antigen (PSA), and International Society of Urologic Pathologists (ISUP) grade on the observation of adverse prostatectomy pathology.
    Methods: Logistic regression analysis was used to demonstrate how tumor length, serum PSA, and ISUP grade related to adverse prostatectomy results and to derive weighting factors for a composite variable, cx.
    Results: The composite variable, cx, relates closely to adverse prostatectomy results as well as to observed PSA failure.
    Conclusions: The composite variable cx uses preoperative information that may allow the sorting of patients into low, intermediate, and high risk for adverse outcomes after prostatectomy.
    MeSH term(s) Adult ; Aged ; Biopsy, Needle ; Humans ; Male ; Middle Aged ; Neoplasm Grading ; Prognosis ; Prostate-Specific Antigen/blood ; Prostatectomy ; Prostatic Neoplasms/mortality ; Prostatic Neoplasms/pathology
    Chemical Substances Prostate-Specific Antigen (EC 3.4.21.77)
    Language English
    Publishing date 2020-06-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 2944-0
    ISSN 1943-7722 ; 0002-9173
    ISSN (online) 1943-7722
    ISSN 0002-9173
    DOI 10.1093/ajcp/aqaa068
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  6. Article ; Online: Understanding the Dynamics of COVID-19

    Vollmer, Robin

    American Journal of Clinical Pathology

    2020  Volume 153, Issue 6, Page(s) 850–851

    Keywords General Medicine ; covid19
    Language English
    Publisher Oxford University Press (OUP)
    Publishing country uk
    Document type Article ; Online
    ZDB-ID 2944-0
    ISSN 1943-7722 ; 0002-9173
    ISSN (online) 1943-7722
    ISSN 0002-9173
    DOI 10.1093/ajcp/aqaa060
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  7. Article ; Online: Initial Screening for Cervical Intraepithelial Neoplasia.

    Vollmer, Robin T

    American journal of clinical pathology

    2019  Volume 152, Issue 2, Page(s) 253

    MeSH term(s) Cervical Intraepithelial Neoplasia ; Colposcopy ; Female ; Humans ; Papillomavirus Infections ; Pregnancy ; Uterine Cervical Neoplasms
    Language English
    Publishing date 2019-06-21
    Publishing country England
    Document type Letter ; Comment
    ZDB-ID 2944-0
    ISSN 1943-7722 ; 0002-9173
    ISSN (online) 1943-7722
    ISSN 0002-9173
    DOI 10.1093/ajcp/aqz058
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  8. Article ; Online: The Calculus of Serum PSA.

    Vollmer, Robin T

    American journal of clinical pathology

    2019  Volume 152, Issue 3, Page(s) 365–368

    Abstract: Objectives: To review the mathematics of kinetic changes in serum prostate-specific antigen (PSA) and to use a compartmental model to derive a new kinetic measure, alpha.: Methods: The calculus of kinetic measures of PSA changes with time is ... ...

    Abstract Objectives: To review the mathematics of kinetic changes in serum prostate-specific antigen (PSA) and to use a compartmental model to derive a new kinetic measure, alpha.
    Methods: The calculus of kinetic measures of PSA changes with time is presented, and a compartmental model is then used to derive alpha of serum PSA. Alpha is then tested for prognostic importance in 119 men who underwent prostatectomy.
    Results: The percentage of tumor in the prostate is closely related to alpha and to tumor length in diagnostic needle biopsies, but not to tumor grade. The presence of adverse pathology in the prostatectomy specimens (positive margins or T3 stage) is significantly associated with alpha, but not to tumor length or grade.
    Conclusions: The derived kinetic parameter, alpha, shows promise as a preoperative prognostic parameter, and may help sort patients into those with low vs high probability for adverse pathology features in the prostatectomy specimens.
    MeSH term(s) Biopsy, Needle ; Humans ; Male ; Neoplasm Staging ; Prognosis ; Prostate/pathology ; Prostate/surgery ; Prostate-Specific Antigen/blood ; Prostatectomy ; Prostatic Neoplasms/blood ; Prostatic Neoplasms/pathology ; Prostatic Neoplasms/surgery
    Chemical Substances Prostate-Specific Antigen (EC 3.4.21.77)
    Language English
    Publishing date 2019-05-28
    Publishing country England
    Document type Journal Article
    ZDB-ID 2944-0
    ISSN 1943-7722 ; 0002-9173
    ISSN (online) 1943-7722
    ISSN 0002-9173
    DOI 10.1093/ajcp/aqz042
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  9. Article ; Online: Serum Prostate-Specific Antigen (PSA) Concentration, PSA Mass, and Obesity: A Mathematical Analysis.

    Vollmer, Robin T

    American journal of clinical pathology

    2018  Volume 149, Issue 3, Page(s) 262–266

    Abstract: Objectives: To provide a mathematical background for understanding the phenomenon of analyte hemodilution using a kinetic analysis.: Methods: The first assumption for this analysis is that change in concentration of any analyte, such as prostate- ... ...

    Abstract Objectives: To provide a mathematical background for understanding the phenomenon of analyte hemodilution using a kinetic analysis.
    Methods: The first assumption for this analysis is that change in concentration of any analyte, such as prostate-specific antigen (PSA), is due to the flux of the analyte from an organ into the blood minus its flux from the blood. What results is a relatively simple differential equation that emphasizes the importance of plasma volume, organ mass, and two rate constants.
    Results: The analyses demonstrate how serum PSA can be affected by plasma volume as well as body mass and how hemodilution due to obesity can be at least partly corrected for by expressing PSA in units of total mass or total mass density.
    Conclusions: At a time when obesity is prevalent, expressing analytes in units of total mass may make them relate more closely to disease status and prognosis.
    MeSH term(s) Body Mass Index ; Humans ; Kinetics ; Male ; Models, Biological ; Obesity/blood ; Obesity/complications ; Obesity/physiopathology ; Plasma Volume ; Prostate-Specific Antigen/blood ; Prostatic Neoplasms/blood ; Prostatic Neoplasms/complications ; Prostatic Neoplasms/diagnosis ; Prostatic Neoplasms/physiopathology
    Chemical Substances Prostate-Specific Antigen (EC 3.4.21.77)
    Language English
    Publishing date 2018-02-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 2944-0
    ISSN 1943-7722 ; 0002-9173
    ISSN (online) 1943-7722
    ISSN 0002-9173
    DOI 10.1093/ajcp/aqx157
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  10. Article ; Online: A review of the incidence of adenocarcinoma detected during surveillance for Barrett's esophagus.

    Vollmer, Robin T

    Human pathology

    2018  Volume 84, Page(s) 150–154

    Abstract: The objective of this study is to provide an up-to-date estimate of the incidence of adenocarcinoma detected during surveillance of Barrett's esophagus. Fifty-five longitudinal studies involving approximately 61 000 patients were reviewed. A general ... ...

    Abstract The objective of this study is to provide an up-to-date estimate of the incidence of adenocarcinoma detected during surveillance of Barrett's esophagus. Fifty-five longitudinal studies involving approximately 61 000 patients were reviewed. A general linear model analyses with Poisson link function was used to study how the number of cancer cases detected depended on study details. The studies seemed to follow the same statistical model, and the probability of developing Barrett's carcinoma during surveillance was found to depend on the following variables: how Barrett's metaplasia was defined, the number of patients studied, the mean time of follow-up, and the fraction of patients followed up for at least 5 years. The model derived from all the studies predicted that the per-person probability of developing cancer in 5 years of complete follow-up is approximately .0012.
    MeSH term(s) Adenocarcinoma/epidemiology ; Barrett Esophagus/diagnosis ; Early Detection of Cancer ; Esophageal Neoplasms/epidemiology ; Humans ; Incidence ; Longitudinal Studies
    Language English
    Publishing date 2018-10-05
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 207657-3
    ISSN 1532-8392 ; 0046-8177
    ISSN (online) 1532-8392
    ISSN 0046-8177
    DOI 10.1016/j.humpath.2018.09.016
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