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PubMedDate not supplied

Neonatal ileoileocolic intussusception associated with ileal polyp: report of one case.

Neonatal intussusception is an uncommon disease. We report a case of neonatal ileoileocolic intussusception led by an ileal polyp in a female neonate. The patient presented with irritable crying, bilious vomiting and frank bloody stool on the 26th day of life. On physical examination, a mobile abdominal mass was palpated. Abdominal sonography demonstrated a long segment intussusception; associated with a low echogenic mass. At laparotomy, ileoileocolic intussusception led by an ileal polyp was found. Pathology confirmed the diagnosis of polyp. Because intestinal obstruction is the primary manifestation, neonatal intussusception is initially indistinguishable from obstructions due to other reasons like intestinal atresia, congenital bands, necrotizing enterocolitis or midgut volvulus. Our experience showed that although uncommon, intussusception should be considered in the differential diagnosis of intestinal obstruction during the newborn period.

Female↗
PubMed1976

[Diffuse polyposis of the large intestine as a precancerous condition].

In 86 (49.4%) of 173 patients cancer of the colon of various localizations against the background of diffuse polyposis was diagnosed, rectal involvement being noted in 50%, cancer involvement of the cecum involvement of the cecum and ascending colon--in 5.4% and 7.2% accordingly. These data made it possible to revise an existing concept of preservation of the rectum in radicalsurgery for diffuse polyposis in favour of remaining right portions of the colon.

Adolescent↗
PubMed1994

[Intestinal obstruction with invagination caused by an inflammatory fibroid polyp of the small intestine].

We observed the rare case of a 50-year-old man with intestinal obstruction due to an inflammatory fibroid polyp (IFP) of the jejunum. Here, we report its clinical and pathological characteristics, and its histologic appearance. Limited small bowel resection led to complete recovery of the patient. In a short review of the literature, possible pathogenetic mechanisms as well as diagnostic and therapeutic means are discussed. Although rare, IFP should be considered in the differential diagnosis of small bowel obstruction.

Anastomosis, Surgical↗
PubMed1986

[Results of removal of malignant polyps of the large intestine].

As a result of endoscopic removal of 238 malignant polyps of the large bowel, malignant tumors in other parts of this organ were found in 6 out of 142 cases (67.7%) followed-up during terms ranging 6 months--10 years. More polyps in different parts of the bowel were found during operation in 27 cases. A procedure for follow-up of cases of malignant polyps is discussed. Endoscopic removal of malignant polyps of the large bowel should be used as a method of choice, particularly, in aged patients suffering concomitant grave diseases.

Adult↗
PubMed2005

Serrated polyps of the large intestine: a morphologic and molecular review of an evolving concept.

Serrated polyps of the large intestine, including traditional hyperplastic polyps, traditional serrated adenomas, and more recently described sessile serrated adenomas, have gained increased recognition in recent years because of growing evidence that one of these lesions, the sessile serrated adenoma, might be the precursor lesion for some cases of microsatellite unstable colorectal carcinoma. Nevertheless, there has been some reluctance to embrace the concept of sessile serrated adenoma, and numerous diagnostic challenges exist. This article, which grew out of the Roger C. Haggitt Gastrointestinal Pathology Society Forum presented in Vancouver, Canada, March 6, 2004 as part of the annual meeting of the United States-Canadian Academy of Pathology, reviews the morphologic and molecular evidence for the concept of various polyps in the general category of serrated polyps of the large intestine, in particular the lesion known as the sessile serrated adenoma, and provides a conceptual framework for diagnosis of these lesions.

Adenocarcinoma↗
PubMed2005

[Inflammatory fibroid polyp of the ileum causing intestinal invagination].

Inflammatory fibroid polyps are rare benign tumor-like lesions of the gastrointestinal tract. Most frequently they are localized in the gastric antrum but can develop anywhere in the GI tract. In the small intestine the ileum is the most common site, where these polyps can cause invagination and intussusception. This happened to the patient we describe here. The latest immunohistochemical, ultrastructural and molecular genetic studies are suggestive of dendritic cell origin of inflammatory fibroid polyps, with myofibroblastic differentiation in some cases.

Cell Differentiation↗
PubMed1997

Flat cancers do develop in the polyp-free large intestine.

PURPOSE AND BACKGROUND: Qualitative and quantitative analysis of many flat early cancers that have been discovered during the last decade led us to recognize that a flat route of cancer development de novo is as important a route as the polypoid one. We aim to prove through a longitudinal study that these flat early cancers indeed develop in flat mucosa and not in an adenomatous polyp. METHODS: From January 1, 1990, to July 31, 1994, 554 patients underwent at least two colonoscopies. These patients consisted of 364 males, and average age was 59 years. We searched for flat early cancers developing in polyp-free colorectal mucosa on or after a second colonoscopy. Polyp-free mucosa here means an intestinal segment proved to possess no adenomatous polyp during the preceding colonoscopies, irrespective of the presence of polyps elsewhere. RESULTS: Four flat early cancers were found developing in polyp-free colonic mucosa in four patients. Average age of the patients was 67 years. Locations of the cancers were the transverse (3) and descending colons (1). The shapes were all depressed, and average size of the lesions was 11 mm. Two lesions were endoscopically resected, and two by surgery. CONCLUSION: These four depressed cancers developing in polyp-free mucosa show that flat early colorectal cancers do arise de novo and not from an adenomatous polyp having collapsed on itself.

Adenocarcinoma↗