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18F Alpha Methyl Tyrosine Positron Emission Tomography in the Differential Diagnosis of Sarcoidosis and Relapse of MALT Lymphoma: A Case Report

Issue: Vol.10, No.3 - July 2011

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  1. Dr Yoshiyuki Suzuki
    M.D., Ph.D
    Gunma University Graduate School of Medicine,

The value of 18fluoro-2-deoxyglucose positron emission tomography in the detection of malignant tumors has recently been recognized, and the procedure is used widely. The
specificity of positron emission tomography is decreased by inflammatory cells and granulation tissues, however, prompting the development of amino acid tracers such as Methionine among others to increase specificity for malignant tumors. One of these, 18F alpha methyl tyrosine, is reported to have high specificity. Here, we report a 53-year-old woman in whom 18F alpha methyl tyrosine positron emission tomography was instrumental in distinguishing sarcoidosis from relapse of mucosa-associated lymphoid tissue lymphoma.

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