Diagnosis and differential diagnosis of urachal carcinoma by computed tomography

VernacularTitle:脐尿管癌的CT诊断
Author: Shi-Jun ZHAO ¹ ; Ling-Xia JIANG ; Jing-Rui DAI ; Chun-Wu ZHOU
Author Information

1. 中国医学科学院肿瘤医院
Keywords: Urachal carcinoma; Tomography,X-ray computed
From: Chinese Journal of Oncology 2008;30(1):59-62
CountryChina
Language:Chinese
Abstract: Objective To analyze CT imaging characteristics of urachal carcinoma. Methods CT findings of 18 pathologically proven urachal masses were retrospectively reviewed. Results Of these 18 cases, 15 were urachal carcinomas, while 3 were inflammatory masses. All 18 masses were situated in the midline of the Retzius space along the course of the urachns, and 17 of those in the juxtavesical portion of the urachus, and only 1 close to the umbilical end. The urachal carcinomas presented as mixed cystic-solid lesions(n=11)or completely solid masses (n=4). Calcification was radiologically visible in 6 cases, and presented as punctate, stippled, or curvilinear in the peripheral or central area of the lesions. Of the 3 inflammatory lesions, 1 infected urachal cyst looked like a thick-walled cystic lesion, 2 chronic inflammatory granulomas manifested as irregular soft tissue masses, and apparently infiltrated into the surrounding adipose tissue. Condusiou Urachal carcinoma has its own characteristics on the CT image, which is helpful in diagnosis.