The term 'polyposis coli' applies to a condition of multiple polyps of the large intestine and is used synonymously with 'familial polyposis' and 'multiple adenomatosis'. The latter name emphasizes the fact that the individual polyps of this disease in no way differ from adenomas observed as solitary lesions. The object of this paper is to describe the histopathology, clinical features, and fam...

matory lesions in the lower gastrointestinal tract including polyps, masses and ulcers that are characterized by elongated and distorted glands surrounded by proliferation of smooth muscle fibers from the muscularis mucosae. The term “prolapsing mucosal polyp” was first described by Franzin et al in 1985 as a new entity of benign colorectal polyp. They reported that these benign colonic lesions...

OBJECTIVE Asian countries generally have low incidences of colorectal cancers (CRCs). One approach to prevention is based on recognition and removal of polyps. The aim of this study was to determine basic demographic features, anatomic distribution and characteristics of colorectal polyps in a local Asian population for comparison with western data. METHODS We here performed a retrospective c...

BACKGROUND AND STUDY AIMS The effectiveness of the prophylactic clip for the prevention of postpolypectomy bleeding in pedunculated colonic polyps has not been confirmed. The aim of this prospective, randomized study was to compare the efficacy of prophylactic clip and endoloop application in the prevention of postpolypectomy bleeding in large pedunculated polyps. PATIENTS AND METHODS A total...

Gallbladder polyps are seen on as many as 7% of gallbladder ultrasonographic images. The differential diagnosis for a polypoid gallbladder mass is wide and includes pseudotumors, as well as benign and malignant tumors. Tumefactive sludge may be mistaken for a gallbladder polyp. Pseudotumors include cholesterol polyps, adenomyomatosis, and inflammatory polyps, and they occur in that order of fre...

Design: 15 large hyperplastic polyps (>1 cm), including 4 with dysplastic foci, 10 small hyperplastic polyps (≤1 cm), and 9 gastric adenomas were evaluated for immunohistochemical expression of MGMT, MLH-1, β-catenin, p27, p16, and p53. Polyps with dysplasia or abnormal β-catenin expression were assessed for APC and β-catenin (CTNNB1) mutations. Large hyperplastic polyps and adenomas were analy...

BACKGROUND AND AIM The ideal method to remove small colorectal polyps is unknown. We compared removal by colon snare transection without electrocautery (cold snare polypectomy) with conventional electrocautery snare polypectomy (hot polypectomy) in terms of procedure duration, difficulty in retrieving polyps, bleeding, and post-polypectomy symptoms. METHODS Patients with colorectal polyps up ...

AIMS To describe and evaluate two apparently unique cases of inverted hyperplastic (metaplastic) polyposis of the colon. METHODS The cases were analysed by standard histopathological, histochemical, and immunohistochemical techniques and the findings compared with those of regular hyperplastic polyps of the colorectum. RESULTS Both patients were middle-aged men with concurrent adenocarcinom...

OBJECTIVES To investigate the expression and distributional patterns of the inhibitor of apoptosis protein (IAP) family and caspase 3 in nasal polyps and normal nasal mucosa and to evaluate the possible effects of the IAP family and caspase 3 on the development of nasal polyps. DESIGN Prospective study. SETTING Tertiary academic institution. PATIENTS Normal inferior turbinate mucosa was o...

BACKGROUND Although sulindac is known to cause regression of colorectal adenomatous polyps in familial adenomatous polyposis, less is known about the effect of sulindac on sporadic adenomas. The precise mechanisms of these effects also remain to be determined. AIMS Sulindac was given to patients with sporadic colorectal adenomatous polyps to evaluate its effects on them, and histological anal...