Abstract:
AIM:To assess the clinicopathological characteristics of duodenal well-differentiated endocrine tumors. METHODS:We examined clinicopathological characteristics in 11 consecutive patients with duodenal well-differentiated endocrine tumors treated by endoscopic therapy or surgery in our hospital from 1992 through 2007. Patients with well-differentiated endocrine tumors of the papilla of Vater or with gastrinoma were excluded. RESULTS:Three patients received endoscopic treatment, and 8 underwent surgery. In patients who received endoscopic treatment, the tumor diameter was less than 1.0 cm, with no histopathological evidence of lymphovascular invasion or invasion of the muscularis. There were no complications such as late bleeding or perforation after treatment. Among 8 patients with tumors less than 1.0 cm in diameter, 3 underwent partial resection, and 2 underwent radical surgery. Three patients had lymphovascular invasion, 1 had invasion of the muscularis, and 1 had proximal lymph node metastasis. Among 3 patients with tumors 1.0 cm or more in diameter, 1 underwent partial resection, and 2 underwent radical surgery. One patient had lymphovascular invasion, with no lymph node metastasis. After treatment, all patients are alive and have remained free of metastasis and recurrence. CONCLUSION:Duodenal well-differentiated endocrine tumors less than 1.0 cm in diameter have a risk of lymphovascular invasion, invasion of the muscularis, and lymph node metastasis, irrespective of procedural problems.
journal_name
World J Gastroenteroljournal_title
World journal of gastroenterologyauthors
Ishido K,Tanabe S,Higuchi K,Sasaki T,Katada C,Azuma M,Naruke A,Koizumi W,Mikami Tdoi
10.3748/wjg.v16.i36.4583subject
Has Abstractpub_date
2010-09-28 00:00:00pages
4583-8issue
36eissn
1007-9327issn
2219-2840journal_volume
16pub_type
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