Nakayama H, Fujii M, Kimura A, Kajihara H
Laboratory of Pathology, Hiroshima University School of Medicine, Japan.
Jpn J Clin Oncol. 1996 Aug;26(4):273-6. doi: 10.1093/oxfordjournals.jjco.a023227.
A solitary Peutz-Jeghers-type polyp of the rectum in a 64-year-old Japanese man is reported. Barium enema and endoscopic examination revealed a solitary polypoid lesion in the rectum. The polyp was pedunculated, and measured 2 x 1.5 x 1.5 cm. The patient had neither mucocutaneous pigmentation nor a family history of gastro-intestinal polyposis. Histopathologically, this polyp had an arborizing muscular network originating from the muscularis mucosa, and was covered by well organized mucosa with epithelial hyperplasia. The smooth muscle bundles in the polyp were thicker than those seen in Peutz-Jeghers syndrome, but their network was not as complex.
报告了一名64岁日本男性直肠内的孤立性黑斑息肉病样息肉。钡灌肠和内镜检查发现直肠内有一个孤立的息肉样病变。该息肉有蒂，大小为2×1.5×1.5厘米。患者既无皮肤黏膜色素沉着，也无胃肠道息肉病家族史。组织病理学检查显示，该息肉有一个起源于黏膜肌层的树枝状肌肉网络，表面覆盖有组织良好且伴有上皮增生的黏膜。息肉中的平滑肌束比黑斑息肉病综合征中的更厚，但其网络不如后者复杂。
