title: Renal pelvic urothelial carcinoma with vena caval thrombus mimicking renal cell carcinoma.
abstract: A 61-year-old man presented with a right renal mass with a vena caval thrombus on computed tomography that was consistent with renal cell carcinoma. The results of routine laboratory examinations and urinalysis were within normal limits. Preoperative planning was critical owing to the presence of the vena caval thrombus. A radical nephrectomy, vena caval thrombectomy, and regional lymphadenectomy were done. The pathologic report was consistent with a high-grade, invasive urothelial carcinoma, with sarcomatoid differentiation involving the renal vein and inferior vena cava (Stage IV, T4N0M0). Thus, this was a rare case of upper tract urothelial carcinoma. Adjuvant chemotherapy with the methotrexate, vinblastine, doxorubicin, cisplatinum regimen is scheduled. To our knowledge, this is the first report in Korea of upper tract urothelial carcinoma of the sarcomatoid type with a vena caval thrombus.
authors.affiliation: Department of Urology, Urological Science Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Richilda Red
authors.initials: RR
authors.lastname: Diaz
authors.affiliation: Department of Urology, Urological Science Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Jong Kyou
authors.initials: JK
authors.lastname: Kwon
authors.affiliation: Department of Urology, Urological Science Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Joo Yong
authors.initials: JY
authors.lastname: Lee
authors.affiliation: Department of Pathology, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Ji Hae
authors.initials: JH
authors.lastname: Nahm
authors.affiliation: Department of Urology, Urological Science Institute, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Kang Su
authors.initials: KS
authors.lastname: Cho
authors.affiliation: Department of Urology, Urological Science Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Won Sik
authors.initials: WS
authors.lastname: Ham
authors.affiliation: Department of Pathology, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Nam Hoon
authors.initials: NH
authors.lastname: Cho
authors.affiliation: Department of Urology, Urological Science Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea. ; Clinical Trials Center for Medical Devices, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Young Deuk
authors.initials: YD
authors.lastname: Choi
mesh_terms: D002292:Carcinoma, Renal Cell / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis / Q000473:pathology*; D008197:Lymph Node Excision / Q000379:methods; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy / Q000379:methods; D012082:Renal Veins / Q000000981:diagnostic imaging*; D017131:Thrombectomy / Q000379:methods; D013927:Thrombosis / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging*
keywords: Renal cell carcinoma; Thrombosis; Transitional cell carcinoma