[X-ray assessment of the size of the nasopharynx].

A new method for x-ray diagnosis of nasopharyngeal size is based on the use of long-distance roentgenography in the lateral projection and of skeletal markers to estimate the cephalometric parameters. The authors draw attention to the usefulness of measuring the size of bone base, soft-tissue structures, and nasopharyngeal air column when assessing the function of the nasopharynx and throat.