Value of 256-slice spiral CT in the differential diagnosis of renal angiomyolipoma with minimal fat and non-clear cell renal cell carcinoma(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2020年第12期
- Page:
- 1520-1524
- Research Field:
- 医学影像物理
- Publishing date:
Info
- Title:
- Value of 256-slice spiral CT in the differential diagnosis of renal angiomyolipoma with minimal fat and non-clear cell renal cell carcinoma
- Author(s):
- HE Xiaohong1; JI Jiuyu2; CHEN Yingjie3
- 1. Department of Radiology, Zhongda Hospital of Southeast University (JiangBei), Nanjing 210044, China 2. Department of Anesthesiology, Zhongda Hospital of Southeast University (JiangBei), Nanjing 210044, China 3. Department of Gastroenterology, General Hospital of Eastern Theater Command, Nanjing 210000, China
- Keywords:
- Keywords: renal angiomyolipoma with minimal fat non-clear cell renal cell cancer (nccrcc) spiral differential diagnosis
- PACS:
- R737.11；R816
- DOI:
- DOI:10.3969/j.issn.1005-202X.2020.12.009
- Abstract:
- Abstract: Objective To analyze the value of 256-slice spiral CT in the differential diagnosis of renal angiomyolipoma with minimal fat (AMLmf) and non-clear cell renal cell carcinoma (nccRCC). Methods 98 patients, admitted to Zhongda Hospital of Southeast University from January 2015 to June 2019, were retrospectively analyzed. It includes 33 patients with AMLmf (AMLmf group) and 65 patients with nccRCC (nccRCC group). All patients underwent abdominal scan and contrast-enhanced dual-phase CT with 256-slice dual-source CT system to determine the "ice cream cone sign" (a specific signs of CT) and the CT density value. Results The incidence of “ice cream cone sign” in AMLmf group (87.879%) was significantly higher than that in nccRCC group (3.077%), and the difference between the two groups was statistically significant (P<0.05). According to scan, the proportion of high density in AMLmf group was significantly higher than that in nccRCC group, while the proportion of low density was significantly lower than that in nccRCC group. And the difference between the two groups was statistically significant (P<0.05). In corticomedullary phase of enhanced CT scan, the CT value of nccRCC group was significantly higher than that of AMLmf group, and the difference between the two groups was statistically significant (P<0.05) while in nephrographic phase, the difference between the two groups was smaller, and not statistically significant (P>0.05). The delayed enhancement was mainly observed in the AMLmf group, while the early clearance was mainly observed in the nccRCC group. And the difference between the two groups was statistically significant (P<0.05). Conclusion 256-slice spiral CT has high value in the differential diagnosis of AMLmf and nccRCC. Compared with AMLmf, nccRCC has the characteristics of no "ice cream cone sign", low scan density and high CT value in corticomedullary phase of enhanced CT scan. So, further study with large sample size and clinical popularization are recommended.
Last Update: 2020-12-30