Mixed Epithelial and Stromal Tumor of the Kidney in a Patient With Mental Retardation: A Case Report

Q4 Medicine

IJU Case Reports Pub Date : 2025-05-12 DOI:10.1002/iju5.70043

Kazuki Sato, Kotaro Hirai, Yumiko Yokomizo, Azumi Fujioka, Yuki Ito, Sawako Chiba, Junichi Murayama

{"title":"Mixed Epithelial and Stromal Tumor of the Kidney in a Patient With Mental Retardation: A Case Report","authors":"Kazuki Sato, Kotaro Hirai, Yumiko Yokomizo, Azumi Fujioka, Yuki Ito, Sawako Chiba, Junichi Murayama","doi":"10.1002/iju5.70043","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Introduction</h3>\n \n <p>Mixed epithelial and stromal tumors are rare renal neoplasms.</p>\n </section>\n \n <section>\n \n <h3> Case Presentation</h3>\n \n <p>A 55-year-old woman with mental retardation presented with a giant renal tumor with abdominal pain. After a renal biopsy with a definitive diagnosis, an open total nephrectomy was performed. There was no recurrence for the following year.</p>\n </section>\n \n <section>\n \n <h3> Clinical Discussion</h3>\n \n <p>Since a definitive diagnosis of MEST cannot be made through imaging alone, surgery is the preferred diagnostic treatment. To our knowledge, renal biopsy has only been reported in three cases. There are only two reports of nonsurgical treatment of benign MEST and no reports of malignant transformation or exacerbation.</p>\n </section>\n \n <section>\n \n <h3> Conclusion</h3>\n \n <p>If the biopsy findings are suggestive of a benign tumor, follow-up is an option. We look forward to reporting the long-term outcomes of the conservative management of MEST.</p>\n </section>\n </div>","PeriodicalId":52909,"journal":{"name":"IJU Case Reports","volume":"8 4","pages":"373-376"},"PeriodicalIF":0.0000,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/iju5.70043","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IJU Case Reports","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/iju5.70043","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Medicine","Score":null,"Total":0}

引用次数: 0

Abstract

Introduction

Mixed epithelial and stromal tumors are rare renal neoplasms.

Case Presentation

A 55-year-old woman with mental retardation presented with a giant renal tumor with abdominal pain. After a renal biopsy with a definitive diagnosis, an open total nephrectomy was performed. There was no recurrence for the following year.

Clinical Discussion

Since a definitive diagnosis of MEST cannot be made through imaging alone, surgery is the preferred diagnostic treatment. To our knowledge, renal biopsy has only been reported in three cases. There are only two reports of nonsurgical treatment of benign MEST and no reports of malignant transformation or exacerbation.

Conclusion

If the biopsy findings are suggestive of a benign tumor, follow-up is an option. We look forward to reporting the long-term outcomes of the conservative management of MEST.

Abstract Image

查看原文本刊更多论文

智力迟钝患者肾脏混合性上皮和间质肿瘤1例报告

上皮和间质混合肿瘤是一种罕见的肾脏肿瘤。病例介绍：一名55岁女性，精神发育迟滞，表现为巨大的肾肿瘤并腹痛。经肾活检确诊后，行开放性全肾切除术。次年无复发。由于MEST不能仅通过影像学确诊，手术是首选的诊断方法。据我们所知，肾活检只报告了三个病例。良性MEST的非手术治疗只有两篇报道，没有恶性转化或恶化的报道。结论若活检结果提示为良性肿瘤，可选择随访。我们期待报告MEST保守治疗的长期结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊