喉癌前病变由临床表现多样而病理形态和生物学特性类似的疾病组成,诊断标准目前尚不统一。1978年世界卫生组织将其定义为:局部因素长期刺激造成的喉黏膜形态变化,或为全身病变的局部表现,较周围黏膜更可能发生癌变的疾病。在 Laryngeal precancerous lesions by the clinical manifestations of diverse and pathological morphology and biological characteristics of similar diseases, the diagnostic criteria are not uniform. In 1978, the World Health Organization defined it as a change in the morphology of the laryngeal mucosa caused by long-term local factors or as a local manifestation of systemic disease, which is more likely to cause canceration than the surrounding mucosa. in