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. 2021 Jun 25;8:644508. doi: 10.3389/fcvm.2021.644508

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Copyright © 2021 Sabbour, Hasan, Al Badarin, Alibazoglu, Rivard, Romany and Perlini.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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PYP scan (A) for metastatic prostate cancer showing an incidental finding of intense myocardial uptake of bone tracer (Grade 3, black arrow), greater than the ribs and spine and intense uptake in both wrists (black arrow) consistent with diagnosis of carpal tunnel syndrome. Lateral planar (B) and anterior planar (C) scans demonstrate intense cardiac PYP uptake at 1 h with H/CL ratio 1.67. At 3 h, lateral planar (D) and anterior planar (E) scans demonstrate intense cardiac PYP uptake with H/CL ratio 1.77. SPECT scan (F) demonstrates intense myocardial uptake in the RV and LV free walls with no blood pool in the left ventricular cavity. H/CL, heart to contralateral lung ratio; LV, left ventricular; PYP, pyrophosphate; RV, right ventricular; SPECT, single-photon emission computed tomography.