{"title":"Idiopathic Interstitial Lung Disease with Positive Anti-Zo and Anti-Ro52/SSA1 Antibodies.","authors":"Mizuha Haraguchi Hashiguchi, Ryusuke Yoshimi, Takuya Ozawa, Masato Asaoka, Junko Kagyo, Yoshie Kawahara, Tetsuya Shiomi","doi":"10.2169/internalmedicine.5062-24","DOIUrl":null,"url":null,"abstract":"<p><p>A 70-year-old male presented with infiltration, ground-glass opacities, and bronchiectasis on chest radiography, which indicated interstitial pneumonia. Clinical findings (thickening of the skin on the fingers, slight nail fold petechiae, and skin lesions resembling mechanic's hands) suggested early systemic sclerosis and/or polymyositis/dermatomyositis. However, anti-Scl-70, anti-centromere, and anti-aminoacyl tRNA synthetase (anti-ARS) antibodies were negative. Exertion-related oxygenation gradually worsened. Since the multiplex protein array confirmed anti-Zo and anti-Ro52/SSA1 antibody positivity, anti-ARS antibody syndrome was diagnosed and treated with steroids and immunosuppressive drugs. The patient was concurrently diagnosed with advanced colorectal cancer. Treating interstitial pneumonia first allowed for the subsequent treatment of colorectal cancer without worsening the condition.</p>","PeriodicalId":13719,"journal":{"name":"Internal Medicine","volume":" ","pages":"2990-2994"},"PeriodicalIF":1.1000,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Internal Medicine","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.2169/internalmedicine.5062-24","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/4/5 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"MEDICINE, GENERAL & INTERNAL","Score":null,"Total":0}
引用次数: 0
Abstract
A 70-year-old male presented with infiltration, ground-glass opacities, and bronchiectasis on chest radiography, which indicated interstitial pneumonia. Clinical findings (thickening of the skin on the fingers, slight nail fold petechiae, and skin lesions resembling mechanic's hands) suggested early systemic sclerosis and/or polymyositis/dermatomyositis. However, anti-Scl-70, anti-centromere, and anti-aminoacyl tRNA synthetase (anti-ARS) antibodies were negative. Exertion-related oxygenation gradually worsened. Since the multiplex protein array confirmed anti-Zo and anti-Ro52/SSA1 antibody positivity, anti-ARS antibody syndrome was diagnosed and treated with steroids and immunosuppressive drugs. The patient was concurrently diagnosed with advanced colorectal cancer. Treating interstitial pneumonia first allowed for the subsequent treatment of colorectal cancer without worsening the condition.
期刊介绍：
Internal Medicine is an open-access online only journal published monthly by the Japanese Society of Internal Medicine.
Articles must be prepared in accordance with "The Uniform Requirements for Manuscripts Submitted to Biomedical Journals (see Annals of Internal Medicine 108: 258-265, 1988), must be contributed solely to the Internal Medicine, and become the property of the Japanese Society of Internal Medicine. Statements contained therein are the responsibility of the author(s). The Society reserves copyright and renewal on all published material and such material may not be reproduced in any form without the written permission of the Society.
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