Thomas Yohannan, MD

Title(s)Associate Professor, Radiology
SchoolSchool of Medicine
Address505 Parnassus Avenue, #M391
San Francisco CA 94117
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    Thomas Yohannan, MD, received his medical degree in 2011 from the University of Illinois College of Medicine in Chicago. He completed an internship in 2012 and a radiology residency in 2016 at Aurora St. Luke’s Medical Center in Milwaukee, Wisconsin, where he won the Aurora Health Care Radiology Resident Teacher Award. He then completed a clinical fellowship in nuclear medicine at UCSF in 2017 and a clinical instructor year at Stanford University in 2018. Dr. Yohannan joined Kaiser Permanente East Bay in 2018 and was most recently Chief of Nuclear Medicine and Radiation Safety Officer, as well as Peer Review Liaison.

    Dr. Yohannan’s current research focuses on improving lung cancer diagnosis and staging with the aim of identifying why the current standard of care, FDG PET, has limited utility for characterizing and staging subsolid lung nodules/cancer, and developing methods for better staging and characterization of T1 lung cancers. Previous research has focused on factors associated with lymph node metastases in lung carcinoids, using FDG-PET/CT to predict tumor response to immunotherapy, evaluation of 68Ga-PSMA-11 PET in biochemical recurrence of prostate cancer, and use of 18 F-florbetaben whole-body PET/MRI for evaluation of systemic amyloid deposition.

    While at Kaiser, Dr. Yohannan led the development of multiple tools for imaging decision and therapeutic coordination support. This included a multi department effort to create an application that standardized the physician-to-patient messaging sent to thyroid cancer patients in multiple languages. In 2021, he was honored by The Permanente Medical Group Leadership Academy for his work. He is also a frequent physician educator for Kaiser Permanente East Bay and Northern California regional medical centers.

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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help. to make corrections and additions.
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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Examination of factors associated with lymph node metastases in lung carcinoids: Results from a single institution retrospective cohort study. Lung Cancer. 2021 04; 154:186-194. Pathipati MP, Yohannan TK, Tian L, Hornbacker K, Benson JA, Berry GJ, Lui NS, Kunz PL, Padda SK. PMID: 33551175; PMCID: PMC8026717.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    2. Single-Center Prospective Evaluation of 68Ga-PSMA-11 PET in Biochemical Recurrence of Prostate Cancer. AJR Am J Roentgenol. 2019 08; 213(2):266-274. Lawhn-Heath C, Flavell RR, Behr SC, Yohannan T, Greene KL, Feng F, Carroll PR, Hope TA. PMID: 31039025.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    3. Predicting Response to Immunotherapy by Evaluating Tumors, Lymphoid Cell-Rich Organs, and Immune-Related Adverse Events Using FDG-PET/CT. Clin Nucl Med. 2019 Apr; 44(4):e272-e279. Nobashi T, Baratto L, Reddy SA, Srinivas S, Toriihara A, Hatami N, Yohannan TK, Mittra E. PMID: 30688730.
      View in: PubMed   Mentions: 44     Fields:    Translation:HumansCells
    4. 18F-florbetaben whole-body PET/MRI for evaluation of systemic amyloid deposition. EJNMMI Res. 2018 Jul 24; 8(1):66. Baratto L, Park SY, Hatami N, Gulaka P, Vasanawala S, Yohannan TK, Herfkens R, Witteles R, Iagaru A. PMID: 30043115; PMCID: PMC6057864.
      View in: PubMed   Mentions: 12  
    5. Transcatheter embolotherapy for gastrointestinal bleeding: a single center review of safety, efficacy, and clinical outcomes. Dig Dis Sci. 2013 Jul; 58(7):1976-84. Yap FY, Omene BO, Patel MN, Yohannan T, Minocha J, Knuttinen MG, Owens CA, Bui JT, Gaba RC. PMID: 23361570.
      View in: PubMed   Mentions: 25     Fields:    Translation:Humans
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