title: CT findings of intrarenal yolk sac tumor with tumor thrombus extending into the inferior vena cava: a case report.
abstract: Yolk sac tumor (YST) is a rare germ cell neoplasm of childhood that usually arises from the testis or ovary. The rare cases of YST in various extragonadal locations have been reported, but the primary intrarenal YST is even more uncommon. Here, we report a case of a primary intrarenal YST with tumor thrombus of the inferior vena cava and left renal vein in a 2-year-old boy, with an emphasis on the CT features. To our knowledge, this is the first reported case of an intrarenal YST with intravascular involvement.
authors.affiliation: Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China.
authors.forename: ShaoChun
authors.initials: S
authors.lastname: Lin
authors.affiliation: Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China.
authors.forename: XueHua
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China.
authors.forename: CanHui
authors.initials: C
authors.lastname: Sun
authors.affiliation: Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China.
authors.forename: ShiTing
authors.initials: S
authors.lastname: Feng
authors.affiliation: Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China.
authors.forename: ZhenPeng
authors.initials: Z
authors.lastname: Peng
authors.affiliation: Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China.
authors.forename: SiYun
authors.initials: S
authors.lastname: Huang
authors.affiliation: Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China.
authors.forename: ZiPing
authors.initials: Z
authors.lastname: Li
mesh_terms: D002675:Child, Preschool; D006801:Humans; D008297:Male; D009373:Neoplasms, Germ Cell and Embryonal / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D012082:Renal Veins / Q000000981:diagnostic imaging* / Q000473:pathology; D013927:Thrombosis / Q000000981:diagnostic imaging / Q000473:pathology; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging* / Q000473:pathology
keywords: Computed tomography; Inferior vena cava; Kidney; Renal vein; Tumor thrombus; Yolk sac tumor