However, this condition is often found in patients with nasal obstruction due to hypertrophic rhinitis. The prevalence of CB and its relationship to nasal diseases were investigated with coronal CT of paranasal sinuses. The subjects consisted of 440 coronal CT scans of paranasal sinuses performed at the Department of Otolaryngology, Kanazawa Municipal Hospital, from April 1992 through March 1995. This variety seems to be attributed to investigated subjects, for example, whether they were patients with nasal complaints or normal volunteers chosen at random. Crick here to see referral slides.
Most recent reports deny the relationship between CB and sinusitis.
However, it is concluded that CB is more frequently found in patients with hypertrophic rhinitis than in patients with sinusitis. If CB is caused by excessive pneumatization, it is suggested that cases of CB may have well-developed sinuses and less susceptible to sinusitis. Therefore, CB is more frequently found in patients with well developed, clear sinuses on conventional X-ray. As for the treatment of CB, lateral conchotomy is performed. The nasal airway, especially through the upper route of the nasal cavity, improves after surgery.