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喉癌的诊断不难,但在术前要确定喉癌浸润的真正范围却很难,而这在术前又是必需的。如果癌局限在声门上区,那么就可选择做声门上水平半喉切除术,这样既切除了癌肿,又保护了发音功能。反之,对实际上已广泛扩散的癌做保护功能手术,势必造成癌残留以致复发。临床上单凭不确切的粘膜表面的肿瘤累及范围来估计和划分病人,那是危险的,因为癌常常隐蔽起来或在粘膜下扩散,而临床上仅看到一小部分,如同“冰山的顶部。”
Diagnosis of laryngeal cancer is not difficult, but it is difficult to determine the true extent of laryngeal cancer infiltration before surgery, and this is necessary before surgery. If the cancer is confined to the supraglottic area, a supraglottic horizontal hemi laryngectomy can be chosen. This will not only remove the cancer but also protect the pronunciation. Conversely, surgical operations that have actually spread widely to protect cancers will inevitably lead to recurrence of cancer. Clinically, it is dangerous to estimate and classify patients simply because of the indeterminate range of tumors on the mucosal surface. Because cancer is often hidden or spread under the mucous membranes, clinically only a small part is seen, like the top of an iceberg. ."