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PT  - JOURNAL ARTICLE
AU  - Wallace, R
AU  - Salazar, J E
AU  - Cowles, S
TI  - The relationship between frontal sinus drainage and osteomeatal complex disease: a CT study in 217 patients.
DP  - 1990 Jan 01
TA  - American Journal of Neuroradiology
PG  - 183--186
VI  - 11
IP  - 1
4099  - http://www.ajnr.org/content/11/1/183.short
4100  - http://www.ajnr.org/content/11/1/183.full
SO  - Am. J. Neuroradiol.1990 Jan 01; 11
AB  - Over a period of 2 years we reviewed the CT scans of 217 patients with recurrent sinusitis. Our findings revealed a number of cases of osteomeatal complex disease with no frontal sinus involvement. This result is difficult to reconcile with the concept of a common drainage in the middle meatus shared by the frontal and anterior ethmoid sinuses. We conclude that the frontal sinus drains separately from the other paranasal sinuses in a large percentage of cases, and that the frontal sinus is frequently spared when there is ethmoid or maxillary sinusitis.