1.Department of Urology, First Affiliated Hospital of Gannan Medical University, Institute of Urology, Gannan Medical University, Ganzhou 341000, China
Abstract:To report the diagnosis and treatment of a case of metanephric adenoma and review related literatures to explore its diagnosis and treatment. Methods: Retrospectively analysed clinical data of a patient with metanephric adenoma. A 29-year-old married and delivered female patient was hospitalized due to right renal tumor discovered by physical examination. BMI 19.6 kg/m2. Preoperation imaging studies showed a single exophytic tumor located on the upper pole of right kidney, 2.7 cm×2.4 cm. The patient was diagnosed with right renal tumor(T1aN0M0) and underwent transvaginal natural orifice transluminal endoscopic surgery(NOTES)-assisted laparoscopic partial nephrectomy. Results: The patient was completed successfully without conversion to open surgery and with no additional trocar. Specimen with complete capsule was removed through vaginal. The operation time was 135 min and the warm ischemia time was 20 min. The estimated blood loss was 250 mL. There were no other complications.Postoperative pathological findings indicated no heteromorphism, gland bubble or papillary structures were seen, surgery margin was negative. Immunohistochemical study showed AE1/AE3, Vimentin, WT1, CD57 were positive, CK7, EMA, RCC were negative, diagnosed metanephric adenoma. The patient recovered well. Patient scar assessment questionnaire score was 45 one month after operation. Normal sexual life recovered 3 months after operation. After 14 months of follow-up,the patient had disease-free survival without recurr-基金项目:国家高技术研发计划(863计划)项目(2012AA021100);江西省“赣鄱英才555工程”领军人才培养计划项目;江西省高校“十二五”重点学科建设经费资助项目ence and metastasis. Conclusions: Metanephric adenoma is easily misdiagnosed as renal malignant tumor. The clinical, histopathological, imaging characteristics contribute to diagnosis and differential diagnosis. Nephron sparing surgery is often performed for the treatment of metanephric adenoma, transvaginal NOTES-assisted laparoscopic partial nephrectomy is a choice for female patients with indications. Due to its biological behavior, careful follow-up should be undergone in patients with metanephric adenoma.
张兆林,王晓宁,邹晓峰,张国玺,袁源湖,肖日海,谢天朋,黄若辉,康欢,赖长福,祝家兴. 后肾腺瘤1例报告并文献复习[J]. 微创泌尿外科杂志, 2016, 5(2): 104-107.
Zhang,Zhaolin,Wang,Xiaoning,Zou,Xiaofeng,Zhang,Guoxi,Yuan,YuanhuXiao,Rihai,Xie,Tianpeng,Huang,Ruohui,Kang,Huan,Lai,Changfu,Zhu,Jiaxing. Metanephric adenoma: A case report and literature review. JOURNAL OF MINIMALLY INVASIVE UROLOGY, 2016, 5(2): 104-107.
[1]Amin MB, Amin MB, Tamboli P, et al. Prognostic impact of histologic subtyping of adult renal epithelial neoplasms: An experience of 405 cases. Am J Surg Pathol, 2002,26(3):281-291. [2]Eble JN, Sauter G, Epstein JI, et al. 冯晓莉译.泌尿系统及男性生殖器官肿瘤病理学和遗传学.11版.北京:人民卫生出版社, 2006:40-43. [3]柯琦,谢刚,杨永红,等.后肾腺瘤临床及病理特征分析.四川医学,2015,36(7):931-934. [4]王晓宁,张国玺,邹晓峰,等.经阴道自然腔道内镜手术辅助腹腔镜下肾部分切除术的临床研究.中华泌尿外科杂志,2015,36(3):192-195. [5]邹晓峰,张国玺,肖日海,等.经阴道NOTES辅助腹腔镜下肾切除术.中华泌尿外科杂志, 2010,31(12):810-813. [6]邹晓峰,徐辉,张国玺,等.经脐入路新型腹腔镜下肾上腺快速切除技术探讨.中华泌尿外科杂志, 2014,35(10):795-796. [7]Brisigotti M, Cozzutto C, Fabbretti G, et al. Metanephric adenoma. Histol Histopathol, 1992,7(4):689-692. [8]Arroyo MR, Green DM, Perlman EJ, et al. The spectrum of metanephric adenofibroma and related lesions: clinicopathologic study of 25 cases from the National Wilms Tumor Study Group Pathology Center. Am J Surg Pathol, 2001,25(4):433-444. [9]Lai YQ, Chen DQ, Xu XN, et al. Metanephric adenoma: A report of two cases and review of the literature. Mol Clin Oncol, 2013,1(6):1087-1089. [10]Davis CJ Jr, Barton JH, Sesterhenn IA, et al. Metanephric adenoma. Clinicopathological study of fifty patients. Am J Surg Pathol, 1995,19(10):1101-1114. [11]Hu YC, Wu L, Yan LF, et al. The imaging features of metanephric adenoma: a case report and review of literature. Onco Targets Ther, 2015, 8:445-449. [12]王聪,宋国新,李明,等.后肾腺瘤八例临床病理学特点.中华病理学杂志,2014,43(3):154-157. [13]Bastide C, Rambeaud JJ, Bach AM, at al. Metanephric adenoma of the kidney: clinical and radiological study of nine cases. BJU Int, 2009,103(11):1544-1548. [14]Delzongle M, Boukamel S, Kemeny F, et al. Metanephric adenoma MR imaging features with histopathological correlation. DiagnInterv Imaging, 2015,96(4):387-390. [15]Blanco LZ Jr, Schein CO, Patel T, et al. Fine-needle aspiration of metanephric adenoma of the kidney with clinical, radiographic and histopathologic correlation: a review. Diagn Cytopathol, 2013,41(8):742-751. [16]Choueiri TK, Cheville J, Palescandolo E, et al. BRAF mutations in metanephric adenoma of the kidney. Eur Urol, 2012,62(5):917-922. [17]Pinto A, Signoretti S, Hirsch MS, et al. Immunohistochemical staining for BRAF V600E supports the diagnosis of metanephric adenoma. Histopathology, 2015,66(6):901-904. [18]Udager AM, Pan J, Magers MJ, et al. Molecular and immunohistochemical characterization reveals novel BRAF mutations in metanephric adenoma. Am J Surg Pathol, 2015,39(4):549-557. [19]牛文杰,赵耀瑞,杨宇明,等.后肾腺瘤8例诊治分析.现代泌尿生殖肿瘤杂志,2013,5(4):205-207. [20]张国玺,薛义军,邹晓峰,等.经自然腔道内镜手术在泌尿外科的应用.微创泌尿外科杂志,2012,1(1):11-14. [21]Xue Y, Zou X, Zhang G, et al. Transvaginal Natural Orifice Transluminal Endoscopic Nephrectomy in a Series of 63 Cases: Stepwise Transition From Hybrid to Pure NOTES. Eur Urol, 2015,68(2):302-310. [22]Conzo G, Sciascia V, Palazzo A, et al. Radiofrequency-assisted partial nephrectomy for metanephric adenoma: a case report and literature review. Surg Innov, 2013,20(1):55-58. [23]Renshaw AA, Freyer DR, Hammers YA. Metastatic metanephric adenoma in a child. Am J Surg Pathol, 2000,24(4):570-574. [24]Le Nué R, Marcellin L, Ripepi M, et al. Conservative treatment of metanephric adenoma. A case report and review of the literature. J Pediatr Urol, 2011,7(4):399-403.