The etiological role of concha bullosa in chronic sinusitis is controversial. Previous investigators have not studied the relationship between the location of concha bullosa and different chronic sinusitis patterns. We performed coronal paranasal sinuses CT in 100 Chinese patients with signs and symptoms of chronic sinusitis and recorded the presence and location of the concha bullosa and the pattern of sinonasal disease. The incidence of concha bullosa was 47%. The presence of concha bullosa showed no statistically significant association with different patterns of chronic sinusitis.