Bellini's duct carcinoma: A report of two cases and a review of the literature.
Bellini's duct carcinoma (BDC) is a rare and aggressive variant of renal cell carcinoma that possesses an extremely poor prognosis. The greater the grade or stage of disease, the poorer the prognosis tends to be. This study presents two cases of BDC; one case of low grade BDC and one case of high grade BDC in a 47-year-old male and 74-year-old female, respectively. The 47-year-old male patient presented with painless gross hematuria, which had lasted for 3 weeks and subsequently underwent purely laparoscopic nephroureterectomy. After 4-years of follow-up, the patient remained disease-free. By contrast, a right renal tumor was identified in the 74-year-old female patient during a routine examination. Radical right nephrectomy and lymph node dissection were performed, however, 10 months after surgery the patient succumbed due to wide-spread metastasis. The two cases reported in the present study not only represent excellent examples of the disease spectrum, but also act as a reminder of the possibility of detecting BDC in an early stage of disease. Therefore, the epidemiology of BDC has been discussed, and the aggressive growth pattern of BDC has been presented in terms of signs, symptoms and imaging examinations, including ultrasonography, computed tomography (CT), angiography and single photon emission CT, in the early stage of disease.
Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China; Department of Urology, Anhui Medical University, Hefei, Anhui 230032, P.R. China.
Yifan
Y
Li
Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China; Department of Urology, Anhui Medical University, Hefei, Anhui 230032, P.R. China.
L U
LU
Jin
Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China; Department of Urology, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China.
Jiaju
J
Liu
Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China; Department of Urology, Anhui Medical University, Hefei, Anhui 230032, P.R. China.
Duqun
D
Chen
Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China; Department of Urology, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China.
Zhengming
Z
Su
Department of Urology, Peking University First Hospital, Institute of Urology, Peking University, Beijing 100034, P.R. China.
Liqun
L
Zhou
Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China.
Bentao
B
Shi
Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China.
Yongqing
Y
Lai
Bellini's duct carcinoma; early detection; epidemiology