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Mucinous versus nonmucinous gastric carcinoma: differentiation with helical CT

Authors
 Mi-Suk Park  ;  Jeong-Sik Yu  ;  Myeong-Jin Kim  ;  Sang-Wook Yoon  ;  Se Hoon Kim  ;  Tae Woong Noh  ;  Kwang-Hun Lee  ;  Jong Tae Lee  ;  Hyung Sik Yoo  ;  Ki Whang Kim 
Citation
 RADIOLOGY, Vol.223(2) : 540-546, 2002 
Journal Title
 RADIOLOGY 
ISSN
 0033-8419 
Issue Date
2002
MeSH
Adenocarcinoma, Mucinous/diagnostic imaging* ; Adenocarcinoma, Mucinous/pathology ; Adult ; Aged ; Aged, 80 and over ; Carcinoma/diagnostic imaging* ; Carcinoma/pathology ; Chi-Square Distribution ; Contrast Media ; Diagnosis, Differential ; Female ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Stomach Neoplasms/diagnostic imaging* ; Stomach Neoplasms/pathology ; Tomography, X-Ray Computed*
Abstract
PURPOSE: To assess the capability of helical computed tomography (CT) to assist in the differentiation between mucinous and nonmucinous gastric carcinomas, with a focus on the thickened stomach wall itself. MATERIALS AND METHODS: In 62 patients with pathologically proved mucinous (n = 21) or nonmucinous (n = 41) gastric carcinomas, contrast material–enhanced helical CT images were obtained. The gross appearance, contrast enhancement pattern, predominant thickened layer, and degree of enhancement were retrospectively evaluated. Statistical analyses were performed with Fisher exact, χ2, and Student t tests. A P value of less than .05 was considered to indicate a statistically significant difference. RESULTS: The most common type of gross appearance in both carcinomas was fungating: It occurred in 71% of patients with mucinous carcinomas and in 59% of patients with nonmucinous carcinomas. The next most common gross appearance type was ulcerative (24% of patients) in nonmucinous carcinomas and diffusely infiltrative (29% of patients) in mucinous carcinomas (P = .009). The most common contrast enhancement pattern was homogeneous (61% of patients) in nonmucinous carcinomas and layered (62% of patients) in mucinous carcinomas (P = .001). These findings were significantly different. The predominantly affected thickened layer was the high-attenuating inner layer or the entire layer (88% of patients) in nonmucinous carcinomas and the low-attenuating middle or outer layer (57% of patients) in mucinous carcinomas. Only two mucinous tumors showed miliary punctate calcifications in infiltrative lesions. CONCLUSION: Helical CT may assist in distinguishing mucinous from nonmucinous gastric carcinoma, primarily on the basis of enhancement pattern, predominant layer of the thickened wall, gross appearance, and presence of calcifications.
Full Text
http://pubs.rsna.org/doi/abs/10.1148/radiol.2232010905
DOI
10.1148/radiol.2232010905
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Pathology (병리학교실) > 1. Journal Papers
Yonsei Authors
Kim, Ki Whang(김기황)
Kim, Myeong Jin(김명진) ORCID logo https://orcid.org/0000-0001-7949-5402
Kim, Se Hoon(김세훈) ORCID logo https://orcid.org/0000-0001-7516-7372
Noh, Tae Woong(노태웅)
Park, Mi-Suk(박미숙) ORCID logo https://orcid.org/0000-0001-5817-2444
Yu, Jeong Sik(유정식) ORCID logo https://orcid.org/0000-0002-8171-5838
Yoo, Hyung Sik(유형식)
Lee, Kwang Hun(이광훈)
Lee, Jong Tae(이종태)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/143328
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