Department of radiology, School of Medicine, College of Health Sciences, Addis Ababa University.
Ethiop J Health Sci. 2023 Jan;33(1):81-90. doi: 10.4314/ejhs.v33i1.11.
Colorectal cancer (CRC) is one of the most prevalent and incident cancers worldwide with an Increasing prevalence in a younger age in developing countries. The aim of the study was to determine the staging and imaging pattern of CRC at diagnosis.
This is a descriptive cross-sectional study including all consecutive cases of CRC found in the departments of radiology and oncology during the study period from March 2016 - February 2017.
A total of 132 CRC cases were studied with M: F = 2.4:1, mean age of 46yrs and 67.4% </= 50yrs. Left-sided tumors were associated with rectal bleeding (p = 0.001) and bowel habit change (p =0.045) whereas right-side tumors were associated with weight loss (p = 0.02) and abdominal pain (p = 0.004). 84.5% of CRC presented at an advanced stage, and 32% had distant metastasis. Young age was associated with the advanced stage (P=0.006) whereas family history was associated with the lower stage (P=0.008). Distance metastasis was associated with Colonic lesions (P=0.003) and emergent presentation (P=0.008). Asymmetric wall thickening with luminal narrowing was significantly associated with left side tumor (95% vs 21.4%) whereas large mass with necrosis was significantly associated with right side tumor (50% vs 5%) (P= 0.004).
CRC is presented at a younger age and at an advanced stage. The majority of CRCs were left-sided and rectal. Increasing the index of suspicion for CRC in patients with rectal bleeding and, bowel habit change is recommended.
结直肠癌(CRC)是全球最常见和最常发生的癌症之一,在发展中国家,其发病率呈年轻化趋势。本研究旨在确定CRC 的分期和诊断时的影像学表现。
这是一项描述性的横断面研究,包括 2016 年 3 月至 2017 年 2 月期间放射科和肿瘤科连续发现的所有 CRC 病例。
共研究了 132 例 CRC 病例,男女比例为 2.4:1,平均年龄为 46 岁,67.4% </= 50 岁。左侧肿瘤与直肠出血(p = 0.001)和排便习惯改变(p = 0.045)相关,而右侧肿瘤与体重减轻(p = 0.02)和腹痛(p = 0.004)相关。84.5%的 CRC 处于晚期,32%有远处转移。年轻与晚期相关(P=0.006),而家族史与较低的分期相关(P=0.008)。远处转移与结肠病变(P=0.003)和紧急就诊(P=0.008)相关。不对称性壁增厚伴管腔狭窄与左侧肿瘤显著相关(95% vs 21.4%),而伴有坏死的大肿块与右侧肿瘤显著相关(50% vs 5%)(P=0.004)。
CRC 呈现年轻化和晚期化。大多数 CRC 为左侧和直肠。建议提高对有直肠出血和排便习惯改变的患者的 CRC 怀疑指数。