A Case Report of Giant Congenital Melanocytic Nevus Complicated by Minimal Change Disease, With Genetic Analysis

ABSTRACT This case describes a 39‐year‐old woman with congenital giant melanocytic nevus (GCMN) who developed new‐onset nephrotic syndrome. Clinical evaluation revealed minimal change disease (MCD) confirmed by renal biopsy, with podocyte effacement on electron microscopy. Genetic testing identified...

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Main Authors: Geping Yu, Ting Hu, Ting Yu, Yihan Zhao, Xiao Xu
Format: Article
Language:English
Published: Wiley 2025-08-01
Series:Clinical Case Reports
Subjects:
Online Access:https://doi.org/10.1002/ccr3.70794
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author Geping Yu
Ting Hu
Ting Yu
Yihan Zhao
Xiao Xu
author_facet Geping Yu
Ting Hu
Ting Yu
Yihan Zhao
Xiao Xu
author_sort Geping Yu
collection DOAJ
description ABSTRACT This case describes a 39‐year‐old woman with congenital giant melanocytic nevus (GCMN) who developed new‐onset nephrotic syndrome. Clinical evaluation revealed minimal change disease (MCD) confirmed by renal biopsy, with podocyte effacement on electron microscopy. Genetic testing identified four variants of uncertain significance, with no known pathogenic mutations. Treatment with corticosteroids, losartan, and low‐molecular‐weight heparin led to remission, and no relapse occurred after one year. The GCMN remained unchanged. This rare co‐occurrence highlights the need to consider systemic associations in complex cases and suggests possible molecular links between dermatological and renal disorders requiring further investigation.
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publishDate 2025-08-01
publisher Wiley
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series Clinical Case Reports
spelling doaj-art-fbfc2e628592424bbc3af0114dad806f2025-08-22T07:33:08ZengWileyClinical Case Reports2050-09042025-08-01138n/an/a10.1002/ccr3.70794A Case Report of Giant Congenital Melanocytic Nevus Complicated by Minimal Change Disease, With Genetic AnalysisGeping Yu0Ting Hu1Ting Yu2Yihan Zhao3Xiao Xu4Department of Nephrology, Hangzhou First People's Hospital Tonglu Campus, School of Medicine Westlake University Hangzhou People's Republic of ChinaDepartment of Nephrology, Hangzhou First People's Hospital Tonglu Campus, School of Medicine Westlake University Hangzhou People's Republic of ChinaDepartment of Nephrology, Hangzhou First People's Hospital Tonglu Campus, School of Medicine Westlake University Hangzhou People's Republic of ChinaDepartment of Nephrology, Hangzhou First People's Hospital Tonglu Campus, School of Medicine Westlake University Hangzhou People's Republic of ChinaDepartment of Nephrology, Hangzhou First People's Hospital Tonglu Campus, School of Medicine Westlake University Hangzhou People's Republic of ChinaABSTRACT This case describes a 39‐year‐old woman with congenital giant melanocytic nevus (GCMN) who developed new‐onset nephrotic syndrome. Clinical evaluation revealed minimal change disease (MCD) confirmed by renal biopsy, with podocyte effacement on electron microscopy. Genetic testing identified four variants of uncertain significance, with no known pathogenic mutations. Treatment with corticosteroids, losartan, and low‐molecular‐weight heparin led to remission, and no relapse occurred after one year. The GCMN remained unchanged. This rare co‐occurrence highlights the need to consider systemic associations in complex cases and suggests possible molecular links between dermatological and renal disorders requiring further investigation.https://doi.org/10.1002/ccr3.70794congenital giant congenital melanocytic nevusgeneticsminimal change diseasepodocyte injury
spellingShingle Geping Yu
Ting Hu
Ting Yu
Yihan Zhao
Xiao Xu
A Case Report of Giant Congenital Melanocytic Nevus Complicated by Minimal Change Disease, With Genetic Analysis
Clinical Case Reports
congenital giant congenital melanocytic nevus
genetics
minimal change disease
podocyte injury
title A Case Report of Giant Congenital Melanocytic Nevus Complicated by Minimal Change Disease, With Genetic Analysis
title_full A Case Report of Giant Congenital Melanocytic Nevus Complicated by Minimal Change Disease, With Genetic Analysis
title_fullStr A Case Report of Giant Congenital Melanocytic Nevus Complicated by Minimal Change Disease, With Genetic Analysis
title_full_unstemmed A Case Report of Giant Congenital Melanocytic Nevus Complicated by Minimal Change Disease, With Genetic Analysis
title_short A Case Report of Giant Congenital Melanocytic Nevus Complicated by Minimal Change Disease, With Genetic Analysis
title_sort case report of giant congenital melanocytic nevus complicated by minimal change disease with genetic analysis
topic congenital giant congenital melanocytic nevus
genetics
minimal change disease
podocyte injury
url https://doi.org/10.1002/ccr3.70794
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