食管鳞状细胞癌(以下简称为食管鳞癌)是我国北方最常见的恶性肿瘤之一,有关它的病理形态研究虽有不少报导,但都属晚期浸润癌。为了了解早期食管鳞癌的组织学特征,曾有一些作者对晚期食管鳞癌癌旁上皮与非食管癌尸检的食管进行研究。食管原位癌迄今仅见一、二例报导。最近Nabeya等报导了28例早期食管癌,但其中浸润深度达粘膜内3例,粘膜下25例,没有一例原位癌。近年来,我们使用 Esophageal squamous cell carcinoma (hereinafter referred to as esophageal squamous cell carcinoma) is one of the most common malignancies in northern China. Although there are many reports on its pathological morphology, all of them are advanced invasive carcinomas. In order to understand the histological features of early esophageal squamous cell carcinoma, there have been some authors examining the esophagus of autopsy of advanced esophageal squamous cell carcinoma paraneoplastic and non-esophageal cancers. Only one or two cases of esophageal carcinoma in situ have been reported. Recently, Nabeya et al. reported 28 cases of early esophageal cancer, but the depth of invasion reached 3 cases in the mucosa and 25 cases in the submucosa. There was no case of carcinoma in situ. In recent years, we use