Brief Article
Copyright ©2012 Baishideng Publishing Group Co.
World J Gastroenterol. Nov 28, 2012; 18(44): 6468-6474
Published online Nov 28, 2012. doi: 10.3748/wjg.v18.i44.6468
Table 1 Patient characteristics (n = 93)
CharacteristicsNo.
Age, yr (range)67 (39-87)
Sex, men/women80/13
Alcohol consumption
Yes56 (54 men, 2 women)
No30 (22 men, 8 women )
Smoker
Yes57 (56 men, 1 woman)
No29 (20 men, 9 women)
Esophageal cancer history
Yes2
No91
Other cancer history
Yes9 (8 gastric cancer, 1 colon cancer)
No84
Location
Hypopharynx21 (17 men, 4 women)
Oropharynx72 (63 men, 9 women)
Biopsy cases62
High-grade dysplasia3
Low-grade dysplasia25
Non-dysplasia34
ESD cases17
High-grade dysplasia2
Low-grade dysplasia14
Non-dysplasia1
Table 2 Histological characteristics of the biopsied pharyngeal lesions n (%)
Non-DLGDHGD
Number34253
IPCL
Upward extension26 (76)24 (96)3 (100)
Dilatation and branching5 (15)21 (84)3 (100)
Diameter expansion0 (0)8 (25)1 (33)
Architectural atypia
Proliferative cell distribution
≥ 2/30 (0)0 (0)3 (100)
< 2/334 (100)25 (100)0 (0)
Tumor front0 (0)23 (92)3 (100)
Cytological atypia
Abnormal variation in cell size0 (0)2 (8)3 (100)
Abnormal nuclear arrangement0 (0)23 (92)3 (100)
Increased nuclear size
High0 (0)0 (0)3 (100)
Absent or low34 (100)25 (100)0 (0)
Table 3 Diameters of the biopsied lesions n (%)
Diameter (mm)nNon-DLGDHGD
0.1-0.233 (100)0 (0)0 (0)
0.3-0.453 (60)2 (40)0 (0)
0.5-0.654 (80)1 (20)0 (0)
0.7-0.8106 (60)4 (40)0 (0)
0.9-1.072 (29)4 (57)1 (14)
1.1-1.291 (11)7 (78)1 (11)
1.3-1.420 (0)1 (50)1 (50)
1.5-1.810 (0)1 (100)0 (0)
1.9-2.030 (0)3 (100)0 (0)