Khor T S, Brown I, Kattampallil J, Yusoff I, Kumarasinghe M P
Department of Histopathology, PathWest, Fremantle Hospital, Fremantle, Australia.
BMJ Case Rep. 2010 Dec 29;2010:bcr1020103385. doi: 10.1136/bcr.10.2010.3385.
Pyloric gland-type adenoma of the duodenum with documented malignant progression is rare. A case is presented of an 87-year-old man with bloating and nausea, who on investigation was found to have a polyp on the anteroinferior wall of the duodenal cap. Histologic examination of the polyp showed features of a pyloric gland adenoma (PGA) demonstrating the full spectrum of progression from low- to high-grade dysplasia and finally invasive adenocarcinoma. The carcinoma showed gastric-type differentiation highlighted by its mucin immunohistochemistry profile and was of advanced stage with lymph node metastasis. The literature on PGAs and the little documentations on progression to carcinoma in duodenal PGAs are reviewed.
十二指肠幽门腺型腺瘤伴恶性进展的病例罕见。本文报告一例87岁男性,有腹胀和恶心症状,经检查发现十二指肠球部前下壁有一息肉。息肉的组织学检查显示为幽门腺腺瘤(PGA),呈现出从低级别到高级别发育异常最终发展为浸润性腺癌的全过程。该癌表现出胃型分化,其粘蛋白免疫组化特征突出,且处于晚期并伴有淋巴结转移。本文对PGA的相关文献以及十二指肠PGA进展为癌的少量文献进行了综述。