Complement-Mediated Hemolytic Uremic Syndrome Due to MCP/CD46 Mutation: A Case Report

Thrombotic microangiopathy (TMA) is a severe condition characterized by microangiopathic hemolytic anemia, thrombocytopenia, and end-organ damage, often involving the kidneys. Complement-mediated hemolytic uremic syndrome (cHUS), a rare form of TMA, arises from dysregulated alternative complement pa...

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Main Authors: Abdul Muhsen Abdeen MD, Jowan Al-Nusair MD, Malik Samardali MD, Mohamed Alshal MD, Amro Al-Astal MD, Zeid Khitan MD
Format: Article
Language:English
Published: SAGE Publishing 2025-01-01
Series:Journal of Investigative Medicine High Impact Case Reports
Online Access:https://doi.org/10.1177/23247096251316364
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author Abdul Muhsen Abdeen MD
Jowan Al-Nusair MD
Malik Samardali MD
Mohamed Alshal MD
Amro Al-Astal MD
Zeid Khitan MD
author_facet Abdul Muhsen Abdeen MD
Jowan Al-Nusair MD
Malik Samardali MD
Mohamed Alshal MD
Amro Al-Astal MD
Zeid Khitan MD
author_sort Abdul Muhsen Abdeen MD
collection DOAJ
description Thrombotic microangiopathy (TMA) is a severe condition characterized by microangiopathic hemolytic anemia, thrombocytopenia, and end-organ damage, often involving the kidneys. Complement-mediated hemolytic uremic syndrome (cHUS), a rare form of TMA, arises from dysregulated alternative complement pathway activation, frequently due to genetic mutations. We report the case of a 23-year-old male presenting with TMA secondary to a heterozygous mutation in the membrane cofactor protein (MCP/CD46) gene. The patient exhibited severe renal and cardiovascular complications, including acute kidney injury requiring hemodialysis, uremic pericarditis, and persistent anemia. Diagnostic evaluation confirmed complement dysregulation, and management with eculizumab, plasmapheresis, and hemodialysis was initiated. Renal biopsy revealed classic TMA features, and genetic testing identified the MCP mutation, underscoring the importance of genetic predispositions in guiding diagnosis and therapy. This case emphasizes the critical role of genetic testing in TMA evaluation and highlights the potential for improved outcomes through targeted complement inhibition and individualized care strategies.
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institution Kabale University
issn 2324-7096
language English
publishDate 2025-01-01
publisher SAGE Publishing
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series Journal of Investigative Medicine High Impact Case Reports
spelling doaj-art-b0dbbffacd664fd2bfb23d8268c6a0ad2025-01-28T07:03:19ZengSAGE PublishingJournal of Investigative Medicine High Impact Case Reports2324-70962025-01-011310.1177/23247096251316364Complement-Mediated Hemolytic Uremic Syndrome Due to MCP/CD46 Mutation: A Case ReportAbdul Muhsen Abdeen MD0Jowan Al-Nusair MD1Malik Samardali MD2Mohamed Alshal MD3Amro Al-Astal MD4Zeid Khitan MD5Marshall University, Huntington, WV, USAMarshall University, Huntington, WV, USAMarshall University, Huntington, WV, USAMarshall University, Huntington, WV, USAMarshall University, Huntington, WV, USAMarshall University, Huntington, WV, USAThrombotic microangiopathy (TMA) is a severe condition characterized by microangiopathic hemolytic anemia, thrombocytopenia, and end-organ damage, often involving the kidneys. Complement-mediated hemolytic uremic syndrome (cHUS), a rare form of TMA, arises from dysregulated alternative complement pathway activation, frequently due to genetic mutations. We report the case of a 23-year-old male presenting with TMA secondary to a heterozygous mutation in the membrane cofactor protein (MCP/CD46) gene. The patient exhibited severe renal and cardiovascular complications, including acute kidney injury requiring hemodialysis, uremic pericarditis, and persistent anemia. Diagnostic evaluation confirmed complement dysregulation, and management with eculizumab, plasmapheresis, and hemodialysis was initiated. Renal biopsy revealed classic TMA features, and genetic testing identified the MCP mutation, underscoring the importance of genetic predispositions in guiding diagnosis and therapy. This case emphasizes the critical role of genetic testing in TMA evaluation and highlights the potential for improved outcomes through targeted complement inhibition and individualized care strategies.https://doi.org/10.1177/23247096251316364
spellingShingle Abdul Muhsen Abdeen MD
Jowan Al-Nusair MD
Malik Samardali MD
Mohamed Alshal MD
Amro Al-Astal MD
Zeid Khitan MD
Complement-Mediated Hemolytic Uremic Syndrome Due to MCP/CD46 Mutation: A Case Report
Journal of Investigative Medicine High Impact Case Reports
title Complement-Mediated Hemolytic Uremic Syndrome Due to MCP/CD46 Mutation: A Case Report
title_full Complement-Mediated Hemolytic Uremic Syndrome Due to MCP/CD46 Mutation: A Case Report
title_fullStr Complement-Mediated Hemolytic Uremic Syndrome Due to MCP/CD46 Mutation: A Case Report
title_full_unstemmed Complement-Mediated Hemolytic Uremic Syndrome Due to MCP/CD46 Mutation: A Case Report
title_short Complement-Mediated Hemolytic Uremic Syndrome Due to MCP/CD46 Mutation: A Case Report
title_sort complement mediated hemolytic uremic syndrome due to mcp cd46 mutation a case report
url https://doi.org/10.1177/23247096251316364
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