Table 1.

¹⁸FDG-PET findings and clinical data of the patients.

Case	Age (years)	Sex	Location	SUVmax⁡	Histopathological diagnosis
1	45	M	Nasal cavity, anterior ethmoid, maxillary sinus	6.1	Inverted papilloma
2	68	M	Nasal cavity, maxillary sinus	8.1	Inverted papilloma with associated foci of SCC
3	67	M	Nasal cavity	4.5	Inverted papilloma
4	73	M	Nasal cavity	—	Chronic inflammatory disease with a polypoid component
5	35	M	Nasal cavity, maxillary sinus	—	Hyperplastic mucosa with polypoid component
6	51	M	Nasal cavity, anterior ethmoid and maxillary sinus	—	Hyperplastic mucosa with massive polypoid component
7	65	M	Nasal cavity,maxillary sinus	2.9	Hyperplastic mucosa with massive polypoid component
8	58	F	Nasal cavity, anterior ethmoid and maxillary sinus	1	Hyperplastic mucosa with massive polypoid component
9	48	M	Nasal cavity, maxillary sinus	5.1	Inverted papilloma
10	62	M	Maxillary sinus	—	Hyperplastic mucosa with massive polypoid component
11	58	M	Nasal cavity	5.6	Inverted papilloma
12	72	M	Nasal cavity, maxillary sinus	—	Chronic inflammatory disease with a polypoid component