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Updated: Apr 25, 2026

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11C-PiB PET/CT in nasopharyngeal amyloidosis associated with multiple myeloma
Mariko Ishimura1, Yuka Yamamoto, Naruhide Kimura
1From the Departments of *Radiology, and †Otolaryngology, Faculty of Medicine, Kagawa University, Kagawa, Japan.
Abstract:
We present an unusual case of nasopharyngeal amyloidosis associated with multiple myeloma. A 63-year-old woman presented with 2 months' history of epistaxis and dentalgia 3 years after being diagnosed with multiple myeloma. CT and C-Pittsburgh compound B (PiB) PET images demonstrated that the intense C-PiB uptake corresponded to the nasal, paranasal, and palatal area matching the CT mass lesion. Histopathologic examination confirmed amyloidosis.
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