Table 2.

Radiologic findings

Variable	MFB (n=179)	CMS (n=68)	P-value
Intralesional hyperdensity	134 (74.9)	0	<0.001
Fuzzy appearance	55 (69.1)	5 (7.4)	<0.001
Full haziness without mass effecta)	20 (11.2)	10 (14.7)	0.513
Full haziness with mass effect	60 (33.5)	6 (8.8)	<0.001
Othersb)	45 (25.1)	46 (67.6)	<0.001

Values are presented as number (%).

MFB, maxillary sinus fungus ball; CMS, chronic maxillary sinusitis.

^a)Mass effect was defined as the presence of widening of the ostiomeatal unit or thinning of the maxillary sinus wall.

^b)Others include smooth protruding lesions like mucosal thickening and fluid collection.