口周色素沉着-肠道息肉综合征(peutz-jegher’s,syndrome,PJS)又称色素沉着息肉综合征,是以指趾末端、口唇周围和黏膜处有黑色素沉着及胃肠道多发息肉为特征,以往人们多认为PJS息肉为错构瘤或增生性息肉,其特点是包绕和组成腺体的平滑肌层增生;且由于扭转和梗阻,息肉上皮组织被插入到黏膜肌层以 Perioral pigmentation - peutz-jegher’s syndrome (PJS), also known as pigmentation polyposis syndrome, is characterized by melanin and gastrointestinal polyp at the end of the toe, around the lips and mucous membranes, In the past many people think that PJS polyps is a hamartoma or hyperplastic polyps, which is characterized by the smooth and hyperplasia of the surrounding gland and composition; and due to torsion and obstruction, the polyp epithelial tissue is inserted into the muscularis mucosa