منابع مشابه
CASE REPORT Serrated adenoma of the duodenum
The duodenum is the most common site for extracolonic adenomas in patients with familial adenomatous polyposis (FAP). These adenomas are usually tubular, villous, or tubulovillous. This report describes a patient with FAP who had a duodenal adenoma with a different histology—it had the microscopic attributes of a serrated adenoma—tumours that are relatively common in the colorectal mucosa and a...
متن کاملSlow-Growing Early Adenocarcinoma Arising from Traditional Serrated Adenoma in the Duodenum
Serrated polyps are classified into 3 distinct types: hyperplastic polyp, sessile serrated adenoma, or transitional serrated adenoma. A serrated adenoma is a precursor lesion for colorectal carcinoma. Serrated polyps are commonly found in the colorectum but have rarely been described in other parts of the gastrointestinal tract. Serrated adenomas in the small intestine may represent aggressive ...
متن کاملTraditional serrated adenoma: an update.
Although recognized 25 years ago, the traditional serrated adenoma (TSA) remains an ongoing source of diagnostic and biologic debate. Recent research has greatly improved our understanding of the morphological and molecular aspects of these polyps. In particular, the recognition of ectopic crypt foci (ECFs) in combination with typical cytology and slitlike serrations improves diagnostic reprodu...
متن کاملSessile serrated adenoma/polyps with a depressed surface: a rare form of sessile serrated adenoma/polyp
Sessile serrated adenoma/polyps (SSA/Ps) usually appear flat to sessile with a smooth-appearing surface. However, macroscopic appearances of SSA/P can vary from flat-elevated to nodular and can even show a pedunculated configuration as we previously reported. The aim of the current study was to evaluate the clinicopathologic features of another under-recognized form of SSA/P which shows a depre...
متن کاملFrom traditional serrated adenoma to tubulovillous adenoma and beyond
It is well established that colorectal cancer develops from a series of precursor epithelial polyps, including tubular adenomas, villous/tubulovillous adenomas (VA/TVA), sessile serrated adenomas (SSA) and traditional serrated adenomas (TSA). Of these, TSAs are least common and account for only 5% of all serrated polyps. TSAs are characterised by the presence of a "pinecone-like" architecture, ...
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ژورنال
عنوان ژورنال: Journal of Clinical Pathology
سال: 2004
ISSN: 0021-9746
DOI: 10.1136/jcp.2004.016360