Table 1.

The group of osteomas obtained from the literature review.

Author	Localization	Method	Size (mm)
Authors of this paper	Ethmoid sinus	endoscopically	≥30
Literature review
Mansour et al.3	Ethmoid sinus	other	≥30
Zouloumis et al.4	Ethmoid sinus	other	<30
Blanco Dominguez et al.9	Ethmoid sinus	Other	<30
Cheng et al.10	Ethmoid sinus	Other	≥30
Cheng et al.10	Frontal sinus	Other	≥30
Cheng et al.10	Frontal sinus	Other	≥30
Hazarika et al.11	Frontal sinus	Other	≥30
Zhuang et al.12	Ethmoid sinus	Other	≥30
Oleś et al.13	Frontal sinus	Endoscopically	≥30
Oleś et al.13	Frontal sinus	Endoscopically	≥30
Stręk et al.14	Ethmoid sinus	Endoscopically	<30
Stręk et al.14	Ethmoid sinus	Endoscopically	<30
Stręk et al.14	Ethmoid sinus	Endoscopically	<30
Stręk et al.14	Frontal sinus	Endoscopically	<30
Panagiotopoulos et al.15	Frontal sinus	Other	≥30
Nagashima et al.16	Frontal sinus	Other	<30
Savastano et al.17	Frontal sinus	Other	≥30
Beitzke et al.18	Frontal sinus	Other	≥30
Kamide et al.19	Ethmoid sinus	Other	<30
Kim20	Ethmoid sinus	Endoscopically	<30
Torun et al.21	Ethmoid sinus	Endoscopically	≥30
Simsek et al.22	Ethmoid sinus	Endoscopically	≥30
Li et al.23	Ethmoid sinus	Endoscopically	<30
Naraghi et al.24	Ethmoid sinus	Endoscopically	≥30
Akmansu et al.25	Ethmoid sinus	Endoscopically	≥30
Saetti et al.26	Ethmoid sinus	Endoscopically	≥30
Kim27	Frontal sinus	Endoscopically	<30
Gerbrandy et al.28	Ethmoid sinus	Other	≥30
Maharjan et al.29	Ethmoid sinus	Other	≥30
Lodha et al.30	Ethmoid sinus	Other	<30
Ansari et al.31	Ethmoid sinus	Other	≥30
Müslüman et al.32	Frontal sinus	Other	≥30
Müslüman et al.32	Ethmoid sinus	Other	≥30
Manaka et al.33	Frontal sinus	Other	≥30
Karbassi et al.34	Ethmoid sinus	Other	≥30
Saati et al.35	Ethmoid sinus	Other	≥30
Alotaibi et al.36	Ethmoid sinus	Endoscopically	≥30