Comparison of CT manifestations of left-sided and right-sided colon mucinous adenocarcinoma

Objective To compare the difference of CT manifestations of left-sided and right-sided colon mucinous adenocarcinoma, and to improve the radiology acknowledge about them. Methods CT findings of 168 patients with colorectal mucinous adenocarcinoma confirmed by surgery and pathology were retrospectively analyzed in the Tumor Hospital of Yunnan Province, the differences of age, gender, length and thickness of the involved intestinal wall, the thickening pattern of the intestinal wall, the peri-intestinal invasion, CT value on NECT, CT value on CECT, the contrast-enhanced form, degree of low density region in CECT, the occurrence metastasis of lymph node and other organs were compared between the two groups. Results Compared with the left-sided colon mucinous adenocarcinoma group, lesions of right-sided colon mucinous adenocarcinoma group was wider and thicker (t=5.066、3.903, P 0.05). Conclusion There are some differences of CT manifestations of left-sided and right-sided colon mucinous adenocarcinoma. Compared with left-sided colon mucinous adenocarcinoma, the CT manifestations of right-sided colon mucinous adenocarcinoma include a wider and thicker of bowel wall thickening with the lower enhancement degree and more cystic components in contrast-enhanced CT show. Key words: Colorectal neoplasms; Mucinous adenocarcinoma; Spiral computed tomography