Abstract
In common with other nose and throat specialists, I have felt the disappointment resulting from the lack of help in diagnosis furnished by roentgenograms of the accessory nasal sinuses, especially in cases of suspected ethmoid and sphenoid disease. The method now employed in the taking of roentgenograms of the accessory nasal sinuses is to put the plate in front of the patient's face and to shoot the roentgen ray through from the back of the head. This gives us an excellent picture of the frontal and maxillary sinuses, but the recognition of the ethmoids and sphenoids is a matter of guesswork. This is due to the fact that the latter cells are small, deeply situated and overlapped by the frontal and maxillary sinuses, the turbinates and the nasal bones. Accordingly, I have devised a new method of taking roentgenograms of the sinuses. I employ a roentgen-ray film that is cut
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