Solitary rectal ulcer syndrome complicating sessile serrated adenoma/polyps: A case report and review of literature

被引:0
作者
Hui Sun [1 ,2 ]
Wei-Qi Sheng [1 ,2 ]
Dan Huang [1 ,2 ]
机构
[1] Department of Pathology,Fudan University Shanghai Cancer Center
[2] Department of Oncology,Shanghai Medical College, Fudan University
基金
中国国家自然科学基金; 上海市自然科学基金;
关键词
Solitary rectal ulcer syndrome; Magnetic resonance imagining; Sessile serrated adenoma/polyp; Mucosal prolapse; HES1; Case report;
D O I
暂无
中图分类号
R574.63 [直肠疾病]; R735.37 [];
学科分类号
1002 ; 100201 ; 100214 ;
摘要
Solitary rectal ulcer syndrome(SRUS) is a rare benign condition, which can mimic many other diseases because of their similarities in clinical, endoscopic and histological features. Sessile serrated adenoma/polyp(SSA/p) is a premalignant lesion in the colon and rectum. The misdiagnosis of SSA/p in SRUS patients has been noted, but the case of SRUS arising secondarily to SSA/p has been rarely reported. We herein report the case of a 59-year-old man who presented with an ulcerative nodular lesion in the rectum, accompanied by the symptoms of blood and mucus in the feces, diarrhea and constipation. Magnetic resonance imagining revealed thickening of the rectal mucosa-submucosa. Histologically, the lesion was characterized by the hyperplastic lamina propria and diffusely serrated crypts. Further immunohistochemical staining showed the loss of HES1 and MLH1 expression in the epithelial cells in the serrated area. The patient with SRUS had histological changes of SSA/p, suggesting a potential of tumor transformation in certain cases. SRUS uncommonly accompanied by serrated lesions should at least be considered by pathologists and clinicians.
引用
收藏
页码:820 / 824
页数:5
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