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食管真正的鳞状上皮乳头状瘤特别罕见。由于资料太少,不知其真实的发病率,从大量尸扦材料中发现率约为0.01—0.04％。1962年纽约医学院统计50年间连续尸检19982例,其中食管良性瘤60例,只有二例乳头状瘤。且过去报道的病例有不少是根据食管镜的发现,无详细描述。迄今为止文献上记载的外科手术切除的良性食管肿瘤,尚未见乳头状瘤的报道。1957年Stout氏等断言他们没有发现人类食管有真正的乳头状
True squamous epithelial papillomas of the esophagus are particularly rare. Due to too little data, I do not know its true morbidity. The rate of discovery from a large number of cadaveric materials is about 0.01-0.04%. In 1962, the New York College of Medical Sciences counted 19982 cases of continuous necropsy for 50 years, including 60 cases of benign tumors of the esophagus, and only 2 cases of papilloma. And many of the cases reported in the past are based on the findings of esophagoscopy and are not described in detail. There have been no reports of papillomas in surgically resected benign esophageal tumors reported in the literature. In 1957, Stout et al. asserted that they did not find that the human esophagus had a true papillary shape.