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Published on: February 28, 2019
Positron emission tomography for predicting malignancy of sinonasal inverted papilloma
Hideo Shojaku1, Michiro Fujisaka, Satsuki Yasumura
1Department of Otolaryngology, University of Toyama, Toyama, Japan. hshojaku@med.u-toyama.ac.jp
Background:
Sinonasal inverted papilloma (IP) is an uncommon nasal tumor. It is known for being locally invasive and recurrent, with a high probability of malignant transformation. Accurate initial staging and close surveillance are critical in the management of the disease.
Methods And Results:
Fluorine-18 fluorodeoxyglucose positron emission tomography (FDG PET) was performed in 5 patients with IP. High FDG uptake (maximum standardized uptake (SUVmax) value >3.0) was observed in all patients, and 2 patients with IP associated with squamous cell carcinoma (SCC) exhibited higher SUVmax values.
Conclusion:
The SUVmax value of a sinonasal tumor can warn the surgeon of the probability of an associated malignancy, even when preoperative biopsy demonstrates a purely benign papilloma.
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