ABSTRACT
Serial sections of 34 transglottic cancer specimens were studied for supplementing the UICC Tumor Classification System. Transglottic cancer is characterized by invasion of the paraglottic space. It invaded the laryngeal framework in a 53 percent of cases [18 out of 34], comparing clinical with pathological classification, we had understaging in 64.7% [22/34] cases. Invasion of the laryngeal framework was closely related to size of the primary lesion, cervical node metastasis appeared to be related to size of the tumor. Follow-up data showed that there was a relationship between the size of the lesion and prognosis. We propose that transglottic cancer is not an advanced lesion of supraglottic or glottic cancer, it is a special type of laryngeal cancer