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      Nephrotic Syndrome Associated with Diffuse Mesangial Hypercellularity: Is It a Heterogeneous Disease Entity?

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          Abstract

          Diffuse mesangial hypercellularity (DMH) is a rare primary mesangial proliferative glomerulonephritis associated with idiopathic nephrotic syndrome (INS). We conducted this study on 15 patients, including 5 patients with repeated specimens, with a follow-up of 0.9–17.5 years and evaluated the clinical course and pathological findings. Seven patients were male. Ten patients were under 14 years of age. All specimens had INS and were diagnosed morphologically with primary diffuse mesangial proliferative glomerulonephritis at initial biopsy; 4 were diagnosed with focal segmental glomerulosclerosis (FSGS) within 3 years by the second biopsy. The remaining 11 patients included 8 initial responders and 3 initial nonresponders to 8 weeks’ steroid therapy and had the histologic variant of the minimal-change nephrotic syndrome (MCNS). Ten of the 11 patients had normal renal function during the investigation period. One patient with the MCNS variant who was refractory to steroid therapy developed end-stage renal disease (ESRD) within 6 years. Four patient with the histologic variant of FSGS included 1 initial responder, 2 late responders, and 1 steroid-refractory case. One patient with the FSGS variant developed ESRD within 4 years. The follow-up biopsies documented that the severity of mesangial hypercellularity was associated with the severity of proteinuria or hematuria. We conclude that DMH may be divided into heterogeneous disease entities, whereas morphologic changes in initial biopsies were similar. Each variant as well as the degree of DMH should be recognized routinely by follow-up biopsy, because they are prognostic indicators.

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          Author and article information

          Journal
          AJN
          Am J Nephrol
          10.1159/issn.0250-8095
          American Journal of Nephrology
          S. Karger AG
          0250-8095
          1421-9670
          1998
          June 1998
          06 May 1998
          : 18
          : 3
          : 214-220
          Affiliations
          Departments of a Pathology and b Pediatrics, Jikei University School of Medicine, and Departments of c Pediatric Nephrology and d Internal Medicine, Tokyo Women’s Medical College, Tokyo, Japan
          Article
          13339 Am J Nephrol 1998;18:214–220
          10.1159/000013339
          9627037
          © 1998 S. Karger AG, Basel

          Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

          Page count
          Figures: 3, Tables: 2, References: 14, Pages: 7
          Product
          Self URI (application/pdf): https://www.karger.com/Article/Pdf/13339
          Categories
          Clinical Study

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