INTRODUCTION: In this study, we aimed to investigate the association of sphenoid volume and pneumatization type with pathologies, including unilateral isolated chronic sphenoid sinusitis with polyps (ICSSwP) and isolated fungal chronic sphenoid sinusitis (IFCSS).
METHODS: A total of 26 patients (15 males, 11 females; mean age 49.9±15.0 years; range, 18 to 80 years) with unilateral isolated sphenoid inflammation, pathologically diagnosed as IFCSS (n=14) or ICSSwP (n=12) between January 2010 and December 2018 were included in this study. The sphenoid sinus volumes of the pathological and normal sides of the patients were compared. The sphenoid pneumatization types were also evaluated.
RESULTS: In the IFCSS group, the pathological side volume was statistically significantly higher than the healthy side volume (p<0.05). In the ICSSwP group, the pathological side volume was statistically significantly lower than the healthy side volume (p<0.05).
DISCUSSION AND CONCLUSION: Large sphenoid sinus volume is prone to IFCSS, while smaller sphenoid sinus volume is prone to ICSSwP. Therefore, it should be considered that difference in the right and left sphenoid sinus volume may have different etiological or predisposing effects for different pathologies.