title: Laparoscopic Non-clamping Tumor Enucleation of Renal Hilum Schwannoma in a Single Kidney: A Case Report.
abstract: A 56-year-old woman underwent laparoscopic right nephrectomy due to pyonephrosis associated with right ureteral stones. Moreover, the patient developed a brain stem hemorrhage and became bedridden. At the time of nephrectomy, a renal tumor, with a size of 24 × 24 × 20 mm, was observed in the left renal hilum; the tumor did not show contrast enhancement on computed tomography. After 3 years, the tumor gradually grew to a size of 45 × 35 × 34 mm, and therefore, laparoscopic non-clamping tumor enucleation was performed. Pathological examination confirmed a diagnosis of renal schwannoma.
authors.affiliation: Department of Urology, Saitama Medical University, 38, Morohongo, Moroyama-machi, Irumagun, Saitama 350-0495, Japan.
authors.forename: Fuminari
authors.initials: F
authors.lastname: Hanashima
authors.affiliation: Department of Urology, Saitama Medical University, 38, Morohongo, Moroyama-machi, Irumagun, Saitama 350-0495, Japan.
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Yanaihara
authors.affiliation: Department of Urology, Saitama Medical University, 38, Morohongo, Moroyama-machi, Irumagun, Saitama 350-0495, Japan.
authors.forename: Taiki
authors.initials: T
authors.lastname: Hayashi
authors.affiliation: Department of Urology, Saitama Medical University, 38, Morohongo, Moroyama-machi, Irumagun, Saitama 350-0495, Japan.
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Kaguyama
authors.affiliation: Department of Urology, Saitama Medical University, 38, Morohongo, Moroyama-machi, Irumagun, Saitama 350-0495, Japan.
authors.forename: Yu
authors.initials: Y
authors.lastname: Teranishi
authors.affiliation: Department of Urology, Saitama Medical University, 38, Morohongo, Moroyama-machi, Irumagun, Saitama 350-0495, Japan.
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Sakamoto
authors.affiliation: Department of Urology, Saitama Medical University, 38, Morohongo, Moroyama-machi, Irumagun, Saitama 350-0495, Japan.
authors.forename: Yoko
authors.initials: Y
authors.lastname: Nakahira
authors.affiliation: Department of Urology, Saitama Medical University, 38, Morohongo, Moroyama-machi, Irumagun, Saitama 350-0495, Japan.
authors.forename: Hirotaka
authors.initials: H
authors.lastname: Asakura
keywords: CT, computed tomography; Kidney; Laparoscopic surgical procedure; Renal neoplasms; Schwannoma