功能性食管疾病(functional esophageal disorder)以慢性食管症状为表现,但缺乏结构、炎症、动力或代谢性疾病的证据。其常由社会心理因素诱发,可与器质性或黏膜疾病重叠,且伴随一些合并症。罗马 IV 标准中功能性食管疾病被分为五大类,分别是功能性胸痛、功能性烧心、反流高敏感、癔球症和功能性吞咽困难。
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