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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:
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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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/wjnm.WJNM_15_20

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 using18fluoro-2-deoxy-D-glucose (FDG) and68Ga-DOTATATE that showed a high uptake on FDG but no uptake on somatostatin receptor-based imaging.


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    -  Kalshetty A
    -  Basu S
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