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18F-FDG and 18F-NaF PET/CT Findings of a Multiple Myeloma Patient With Thyroid Cartilage Involvement

Oral, Aylin, MD*; Yazici, Bulent, MD*; Ömür, Özgür, MD*; Comert, Melda, MD; Saydam, Guray, MD

doi: 10.1097/RLU.0000000000000908
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Thyroid cartilage is a very rare extramedullary involvement location in multiple myeloma. We present both 18F-NaF and 18F-FDG PET/CT findings of a multiple myeloma patient with thyroid cartilage involvement. In this patient, increased FDG and more intensely increased NaF uptake were seen on thyroid cartilage. In addition, some bone lesions had more intense NaF than FDG uptake, and some were only NaF avid. Although 18F-FDG PET/CT has an important role in plasma cell neoplasms, we considered that 18F-NaF PET/CT is also very useful to detect small lytic lesions that might be overlooked on 18F-FDG PET/CT.

From the *Department of Nuclear Medicine, and †Division of Hematology, Department of Internal Medicine, Ege University Medical Faculty, Izmir, Turkey.

Received for publication November 20, 2014; revision accepted May 19, 2015.

Conflicts of interest and sources of funding: none declared.

Correspondence to: Bulent Yazici, MD, Department of Nuclear Medicine, Ege University Medical Faculty, 35040-Bornova, Izmir, Turkey. E-mail:

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