抄録
Laryngeal cancer is one of cancers located superficially. one can easily detect lesions endoscopically and get histo-pathologic diagnosis by punch biopsy through endoscopy. Few are left for further diagnostic imaging work-up, but evaluation of sub-glottic spread by conventional radiography is one of weak-points of endoscopy. Conventional tomography, dual-energy projection radiography, or three-dimensional CT are useful to evaluate sub-glottic extension of the tumor. CT and MRI are powerful tools in evaluating submucosal extension of the tumor. CT and MRI, as well as ultrasound, are helpful for the diagnosis of metastatic lymphadenopathy. The clinical significance and limits of each modality were discussed.
