A WEALTH of knowledge is provided by the base view of the skull. This knowledge can be obtained only by careful evaluation of the many lines and foramina. The otolaryngologist and the maxillofacial surgeon are concerned with those structures anterior to the jugular foramen. The base view is chiefly recognized for the evaluation of the posterior ethmoid and sphenoid sinuses and foramina of the base of the skull.1-4
A better understanding of the lines and foramina can be obtained by having some of the more consistent structures defined on dried skulls so that the variable structures present less confusion and a clearer separation of the normal structural varieties from pathological changes.
In addition to the generally recognized structures, we have described relationships of those structures infrequently discussed but of clinical significance. Varying changes in the x-ray tube and subject angulation have been presented to bring out their effect on the
Yanagisawa E, Smith HW, Merrell RA. Radiographic Anatomy of the Paranasal SinusesIII. Submentovertical View. Arch Otolaryngol. 1968;87(3):299–310. doi:10.1001/archotol.1968.00760060301015