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CASE REPORT
Year : 2020  |  Volume : 19  |  Issue : 4  |  Page : 414-416

Interpreting discordance on dual-tracer positron emission tomography–computed tomography in the setting of metastatic neuroendocrine tumor: Detection of metachronous triple-negative breast carcinoma


Radiation Medicine Centre, Bhabha Atomic Research Centre, Tata Memorial Hospital Annexe; Homi Bhabha National Institute, Mumbai, Maharashtra, India

Correspondence Address:
Dr. Sandip Basu
Radiation Medicine Centre, Bhabha Atomic Research Centre, Tata Memorial Hospital Annexe building, Jerbai Wadia Road, Parel, Mumbai, Maharashtra
India
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DOI: 10.4103/wjnm.WJNM_15_20

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Second primary malignancies (SPMs) are known to be associated with neuroendocrine tumors (NETs). The association necessitates a careful assessment of the dual-tracer positron emission tomography–computed tomography (PET-CT) imaging findings to identify these malignancies earlier. Such early diagnosis can provide incremental benefit for screening these SPMs apart from their known applications in the management of NETs. A case of incidentally detected metachronous triple-negative breast carcinoma on dual-tracer PET-CT imaging is presented using 18fluoro-2-deoxy-D-glucose (FDG) and 68Ga-DOTATATE that showed a high uptake on FDG but no uptake on somatostatin receptor-based imaging.


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