Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2004-1-27
pubmed:abstractText
Patients may be referred for endosonography after endoscopic resection of polyps because of cancer identified in the histologic specimen. To assess the effects of electrocautery-induced tissue changes on tumor staging by endosonography, endosonography findings after endoscopic removal of large polyps were correlated with surgical and endoscopic pathology. Endosonography findings revealed irregular and thickened wall layers, especially in the muscularis propria with pseudopod extensions. Five of 7 patients had evidence of cancer in the endoscopic specimen. However, no residual tumor was found in the surgically resected bowel (2 patients) or in subsequent biopsies of the endoscopic resection site (3 patients). In 2 other patients, no cancer was present in the endoscopic specimen, and follow-up biopsies of the endoscopic resection site were all benign. Electrocautery-induced inflammatory changes create hypoechoic changes within the gut wall that may mimic tumor invasion. Irregularities in the muscularis propria layer cannot be relied upon to diagnose a T2 or T3 lesion by endosonography in this setting. Patients with large polyps greater than 2 cm and other mucosal lesions with malignant potential should undergo endosonography prior to endoscopic resection.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0192-0790
pubmed:author
pubmed:issnType
Print
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
99-103
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Pitfalls of endoscopic ultrasound staging after application of electrocautery.
pubmed:affiliation
Division of Gastroenterology and Hepatology, University of Colorado School of Medicine, Aurora, CO 80010, USA. yang.chen@uchsc.edu
pubmed:publicationType
Journal Article, Case Reports