Related Experiment Video
Updated: Jul 2, 2026
04:09
The Pocket-Creation Procedure of Endoscopic Submucosal Dissection for Large Rectal Laterally Spreading Tumors
Published on: February 13, 2026
[Local excision of giant rectal polypoid neoplasms]
Andrea Cimitan1, Antonio Burza, Ursula Basile
1Dipartimenti di Chirurgia, Azienda Ospedaliera San Giovanni-Addolorata-Britannico, Roma.
Chirurgia Italiana
|August 20, 2008
Summary
Local excision is effective for giant rectal adenomas and early rectal cancers. Techniques like Parks and Transanal Endoscopic Microsurgery (TEM) offer safe and radical treatment with low recurrence rates.
Area of Science:
- Gastroenterology
- Surgical Oncology
- Colorectal Surgery
Context:
- Giant adenomas and early rectal cancers pose treatment challenges.
- Local excision offers a minimally invasive therapeutic option.
- Parks technique and Transanal Endoscopic Microsurgery (TEM) provide excellent exposure for rectal lesions.
Purpose:
- To evaluate the efficacy and outcomes of local excision for giant rectal adenomas and early rectal cancers.
- To compare the effectiveness of Parks technique and TEM in treating rectal lesions.
- To assess recurrence rates, morbidity, and mortality associated with local excision.
Summary:
- A study of 51 patients with giant rectal lesions treated by local excision (Parks, TEM, or both) revealed a 49% rate of adenocarcinoma (including 22 pTis, 2 pT1, 1 pT2) and 51% adenoma diagnosis.
- The overall local recurrence rate was 9.8% (7.6% for adenomas, 12% for carcinomas).
- Parks technique is suitable for lower rectal tumors, while TEM is optimal for middle and upper rectal lesions, offering safety and radicality with no operative mortality in this series.
Impact:
- Local excision, particularly TEM and Parks technique, is a safe and effective treatment for selected giant rectal adenomas and early rectal cancers.
- These techniques facilitate radical excision, minimizing recurrence and morbidity.
- The findings support the use of these minimally invasive approaches for appropriate indications in colorectal surgery.
Related Concept Videos
01:26Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy
Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
01:21Inflammatory Bowel Disease V: Surgical Management
Surgical interventions for inflammatory bowel disease (IBD), which includes ulcerative colitis and Crohn's disease, are essential in managing symptoms and addressing complications. The selection of surgical procedures is contingent upon the specific conditions and complications that stem from these illnesses.
Here are some common surgical interventions for IBD:
Here are some common surgical interventions for IBD:
01:25Endoscopic Procedures II: Colonoscopy
The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections: