Copyright
©The Author(s) 2002.
World J Gastroenterol. Feb 15, 2002; 8(1): 21-25
Published online Feb 15, 2002. doi: 10.3748/wjg.v8.i1.21
Published online Feb 15, 2002. doi: 10.3748/wjg.v8.i1.21
Table 1 The detective rate for early stage of colorectal cancer in China
Table 2 The malignant transformation rate of polyps in China
Authors | Area | n | Incidence (%) |
Zhou et al[22] | Guangzhou | 539 | 3.4 |
Cai et al[23] | Guangzhou | 216 | 9.7 |
Zhang et al[24] | Changchun | 2000 | 5.1 |
Shen et al[25] | Kunming | 533 | 6.4 |
Zhu et et al[26] | Beijing | 219 | 1.4 |
Zhu et al[27] | Nanjing | 644 | 5.8 |
Wang et al[28] | Xi’an | 548 | 9.7 |
Zhang et al[29] | Zhejiang | 321 | 14.6 |
Zhang et al[30] | Ha-erbing | 494 | 20.4 |
Gao et al[31] | Shanghai | 334 | 6.6 |
Table 3 Morphology of 137 cases of early stage colorectal cancer under endoscopy
Morphology | Type | n | Ratio |
Polypoid | I | 131 | 95.6 |
Elevated | IIa | 2 | 1.4 |
Flat | IIb | 1 | 0.7 |
Depressed | IIc or IIc + IIa | 3 | 2.3 |
Table 4 Histopathology of 186 cases of type II lesion
Morphology | Type | n (%) | Histopathologic diagnosis | ||
Early cancer | Adenoma | Other | |||
Elevated | IIa | 155(83.3) | 2(1.3) | 86(55.4) | 67(43.3) |
Flat | IIb | 22(11.8) | 1(4.5) | 2(9.00) | 19(86.4) |
Depressed | IIc or IIc + IIa | 9(4.8) | 3(33.3) | 4(44.4) | 2(22.2) |
Table 5 Mass screening for colorectal cancer in asymptomatic population
Authors | Region | Age(yrs) | Population | Cancer | Dukers(%)A/B | Detection rate |
Li et al | North | > 35 | 102800 | 25 | 52.0 | 24/105 |
Zhen et al | East | > 35 | 62667 | 16 | 57.2 | 25.5/105 |
Zhou et al | Mid-south | > 45 | 24677 | 9 | 55.6 | 36.5/105 |
Table 6 The follow-up results in 3641 cases of asymtomatic population
Cancer (n) | Adenoma | |||
n | > 1.0 cm | Dysplasia( > II grade) | ||
First screen | 4 | 48 | 17(35.4%) | 12(25.0%) |
Two years later | 0 | 18 | 4(22.2%) | 2(11.1%) |
Table 7 Gene mutation analysis in colorectal cancer stool (Nanfang Hospital)
Gene | n | Tissue DNA | Fecal DNA | ||
Positive | % | Positive | % | ||
APC | 41 | 20 | 48.8 | 14 | 34.1 |
MCC | 45 | 13 | 28.9 | 11 | 24.4 |
P53 | 32 | 32 | 37.5 | 10 | 31.3 |
- Citation: Zhang YL, Zhang ZS, Wu BP, Zhou DY. Early diagnosis for colorectal cancer in China. World J Gastroenterol 2002; 8(1): 21-25
- URL: https://www.wjgnet.com/1007-9327/full/v8/i1/21.htm
- DOI: https://dx.doi.org/10.3748/wjg.v8.i1.21