Open AccessRight supernumerary kidney with urothelial carcinoma
Author(s) -
Xinghua Gao,
Qingfei Xing,
Xudong Luo,
Tingshuai Cao,
Shimin Zhang,
Fei Yang,
Daming Fan,
Zhen Gao,
Longyang Zhang,
Feng Guo
Publication year - 2020
Publication title -
medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.59
H-Index - 148
eISSN - 1536-5964
pISSN - 0025-7974
DOI - 10.1097/md.0000000000022329
Subject(s) - medicine , ureteral neoplasm , supernumerary , urology , ureter , kidney , radiology , transitional cell carcinoma , bladder cancer , cancer , anatomy
Rationale: A supernumerary kidney is an extremely rare renal anomaly. Currently, <100 cases are reported in the literature. There are only 2 right unilateral supernumerary kidneys reported in the literature thus far, but no confirmed cases of urothelial carcinoma in supernumerary kidneys. We report a case of a right supernumerary with urothelial carcinoma, which is, to the best of our knowledge, reported for the first time. Patient concerns: A 73-year-old female patient presented with intermittent, painless, whole course and gross hematuria for about 3 months. Her physical and laboratory examinations did not reveal any significant findings except positive occult blood in routine urine examination. Contrast-enhanced spiral computed tomography revealed a dysplastic supernumerary kidney under the normal right kidney. Diagnoses: The ureteroscopy showed that the ureter was Y-shaped in the middle part. The medial ureter led to a normal kidney. The lateral ureter was just 2 cm and led to a small cavity in which there was a mass whose biopsy showed urothelial carcinoma. The patient was subsequently diagnosed with a right supernumerary kidney with urothelial carcinoma. Intervention: Nephroureterectomy, including the right normal and supernumerary kidneys, and partial cystectomy by laparoscopy were performed after the ureteroscopy. The patient then received 6 cycles of gemcitabine and cisplatin regimen chemotherapy and regular intravesical epirubicin chemotherapy. Outcomes: No recurrence or metastasis was found on follow-up computed tomography performed 13 months postoperatively. Lessons: A supernumerary kidney is an extremely rare renal anomaly. Malignancy can occur in supernumerary kidneys.