Dujon A, Carnot F, Riquet M, Debesse B
Ann Chir. 1989;43(8):686-91.
Para-oesophageal cyst is a rare lesion which can be classified, by its origin, as a gastrointestinal duplication. It is mostly encountered in children. Since 1977, we have observed 6 cases in adults, and 5 out of 6 presented as postero-inferior mediastinal tumors. Pre-operative diagnosis is difficult: when the lesion is intramural, the only other diagnosis is leiomyoma; in other cases, a bronchogenic cyst or a posterior mediastinal enteric formation can be discussed. Surgical findings and histological criteria allow a precise definition of these cysts, which lie at least partially in the wall of the oesophagus. They are a histological association of respiratory mucosa and muscular, either of type or associated with cartilaginous islets. The definition of the clinical classification is easier with a good knowledge of the histogenesis.
食管旁囊肿是一种罕见的病变，根据其起源可归类为胃肠道重复畸形。它多见于儿童。自1977年以来，我们在成人中观察到6例，其中6例中有5例表现为后下纵隔肿瘤。术前诊断困难：当病变位于壁内时，唯一的其他诊断是平滑肌瘤；在其他情况下，可考虑支气管源性囊肿或后纵隔肠源性肿物。手术所见和组织学标准有助于对这些至少部分位于食管壁内的囊肿进行精确界定。它们是呼吸黏膜与肌肉组织的组织学组合，或是这种类型，或是伴有软骨小岛。了解组织发生学后，临床分类的定义就更容易了。
