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Definition / general. Benign hyperplastic overgrowth of endometrial tissue that forms a localized projection into the endometrial cavity and is composed of a variable amount of glands and stroma. Polypoid / pedunculated mass composed of cystically dilated glands with fibrous stroma that contains thick walled blood vessels. May be related to ...
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Definition / general. Most common type of pediatric intestinal polyp, with prominent, cystically dilated glands and inflammatory stroma (> 90% of childhood colon polyps) (Clin Colon Rectal Surg 2008;21:280) Juvenile refers to the type of polyp (hamartomatous), not the age of presentation. Majority are solitary (Gastroenterol Hepatol (N Y) 2010 ...
Various terminologies may be used to report the findings of lymphoid polyp on a pathology report. May be reported as reactive lymphoid aggregate if there is a prominent germinal center with polymorphous population of cells and tingible body macrophages. Other reporting terminology may be colonic mucosa with prominent lymphoid aggregate ...
Other tumors: gastroblastoma GIST glomus tumor leiomyoma leiomyosarcoma plexiform fibromyxoma schwannoma. Stomach stains: chromogranin c-kit / CD117 DOG1 desmin EBER1 / 2 / LMP gastrin (pending) Helicobacter pylori HER2 stomach GEJ INSM1 Ki67 S100 SMA synaptophysin Warthin-Starry. Superpages: entire chapter images virtual slides.
Polyps: polyp overview aberrant crypt foci adenoma overview adenoma with invasive carcinoma hyperplastic polyp inflammatory polyp inflammatory cap polyp inflammatory fibroid polyp juvenile (retention) polyp lymphoid polyp mucosal prolapse polyp serrated lesions - general sessile serrated adenoma traditional serrated adenoma tubular adenoma ...
Traditional serrated adenomas can be distinguished from sessile serrated adenomas and hyperplastic polyps by their low Ki67 staining, specifically within the ectopic crypts (Am J Surg Pathol 2008;32:21) Tubulovillous adenoma: Definitive dysplastic nuclei, no eosinophilic cytoplasm, no serrated architecture or ectopic crypts.
Gastric hyperplastic polyps arise in the setting of a background mucosal injury. Juvenile polyps are hamartomatous polyps, which can be sporadic or syndromic in a setting of juvenile polyposis syndrome. Further endoscopic examination for a sampling of background mucosa and any additional intestinal polyps will be helpful.
Inflammatory polyp lacks the proliferation of respiratory epithelium and thickened basement membrane typical of respiratory epithelial adenomatoid hamartoma. Biphenotypic sinonasal sarcoma: Can be polypoid but characterized by cellular spindle cells in the stroma showing biphenotypic neural and myoid differentiation.
F-N: gangliocytic paraganglioma Giardia lamblia GIST grossing & features to report heterotopic gastric mucosa heterotopic pancreas histology-ampulla histology-small intestine hyperplastic polyp idiopathic retroperitoneal fibrosis ileal pouch / pouchitis immunoproliferative small intestinal disease (ISID) infectious disorders-general ...