Rapid Communication
Copyright ©2007 Baishideng Publishing Group Co.
World J Gastroenterol. Feb 21, 2007; 13(7): 1108-1111
Published online Feb 21, 2007. doi: 10.3748/wjg.v13.i7.1108
Table 1 Histopathological sub-classification of primary duodenal tumors (excluding ampullary and peri-ampullary tumors)
Pathological diagnosisCases n (%)
n = 55
Epithelial tumors27 (49.0)
Adenoma10
Adenocarcinoma15
Brunneroma2
Mesenchymal tumors9 (16.3)
GIST4
Benign1
Borderline1
Malignant2
Smooth muscle tumors4
Leiomyoma2
Leiomyosarcoma2
Neurofibroma1
Lymphoproliferative tumors12 (21.8)
Non-Hodgkin’s lymphoma12
B-Cell lymphoma10
T Cell lymphoma2
Neuroendocrine tumors7 (12.7)
Carcinoid5
Gastrinoma1
Neuroendocrine carcinoma1