title: Urachal carcinoma: Report of two cases and review of the literature.
abstract: Urachal carcinoma is a rare tumor that most commonly occurs in ovaries and less often in the adnexal region and urinary system. We herein present two cases of urachal carcinoma: One case was a 32-year-old male patient who presented with painless hematuria with blood clots for 1 month, whereas the other case was a 50-year-old woman who presented with gross hematuria with mild dysuria, urgency and frequent urination for 1 year. Following surgical resection, the two patients were diagnosed with urachal adenocarcinoma (mixed type) and urachal mucinous adenocarcinoma, respectively, based on the histopathological examination. A review of previously published cases and relevant literature is also presented. The aim of the present study was to help understand this disease better, in order to reduce the rate of clinical and pathological misdiagnosis.
authors.affiliation: Department of Urology, The First Clinical College, Anhui Medical University, Hefei, Anhui 230032, P.R. China; Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China.
authors.forename: Jing
authors.initials: J
authors.lastname: Quan
authors.affiliation: Department of Urology, The First Clinical College, Anhui Medical University, Hefei, Anhui 230032, P.R. China; Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Pan
authors.affiliation: Department of Urology, The First Clinical College, Anhui Medical University, Hefei, Anhui 230032, P.R. China; Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China.
authors.forename: Lu
authors.initials: L
authors.lastname: Jin
authors.affiliation: Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China; Department of Urology, Guangzhou Medical University, Guangzhou, Guangdong 510006, P.R. China.
authors.forename: Tao
authors.initials: T
authors.lastname: He
authors.affiliation: Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China; Department of Urology, Guangzhou Medical University, Guangzhou, Guangdong 510006, P.R. China.
authors.forename: Jia
authors.initials: J
authors.lastname: Hu
authors.affiliation: Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China.
authors.forename: Bentao
authors.initials: B
authors.lastname: Shi
authors.affiliation: Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China.
authors.forename: Jian
authors.initials: J
authors.lastname: Peng
authors.affiliation: Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China.
authors.forename: Zhebo
authors.initials: Z
authors.lastname: Chen
authors.affiliation: Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China.
authors.forename: Shangqi
authors.initials: S
authors.lastname: Yang
authors.affiliation: Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China.
authors.forename: Xiangming
authors.initials: X
authors.lastname: Mao
authors.affiliation: Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China.
authors.forename: Yongqing
authors.initials: Y
authors.lastname: Lai
keywords: computed tomography; urachal carcinoma; urachal mucinous carcinoma