{"title":"Human immunodeficiency virus-associated nephropathy mainly due to cellular variant of focal segmental glomerulosclerosis.","authors":"Hikaru Tanimizu, Naoki Sawa, Akinari Sekine, Yuki Oba, Masayuki Yamanouchi, Eiko Hasegawa, Tatsuya Suwabe, Junichi Hoshino, Keiichi Kinowaki, Kei Kono, Kenichi Ohashi, Yukiko Kanetsuna, Kazuho Honda, Kensuke Joh, Yutaka Yamaguchi, Takehiko Wada, Yoshifumi Ubara","doi":"10.1007/s13730-025-00979-2","DOIUrl":null,"url":null,"abstract":"<p><p>A 45-year-old man with a low titer of hepatitis B virus (HBV) was diagnosed with nephrotic syndrome. A subsequent test for human immunodeficiency virus (HIV) was positive. Kidney biopsy revealed some signs of collapsing variant of focal segmental glomerulosclerosis (FSGS), but the predominant finding was a cellular variant of FSGS. Two years after receiving tenofovir, urine protein became negative, and the patient was finally diagnosed with HIV-associated nephropathy. Collapsing variant of FSGS is considered typical of HIV-related nephropathy, but the cellular variant of FSGS in this patient represents another type. The cause of many FSGSs is often never identified, making cause-based treatment difficult. This case demonstrates that identification of the cause of FSGS can lead to treatment of FSGS.</p>","PeriodicalId":9697,"journal":{"name":"CEN Case Reports","volume":" ","pages":""},"PeriodicalIF":1.0000,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"CEN Case Reports","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/s13730-025-00979-2","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"UROLOGY & NEPHROLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
A 45-year-old man with a low titer of hepatitis B virus (HBV) was diagnosed with nephrotic syndrome. A subsequent test for human immunodeficiency virus (HIV) was positive. Kidney biopsy revealed some signs of collapsing variant of focal segmental glomerulosclerosis (FSGS), but the predominant finding was a cellular variant of FSGS. Two years after receiving tenofovir, urine protein became negative, and the patient was finally diagnosed with HIV-associated nephropathy. Collapsing variant of FSGS is considered typical of HIV-related nephropathy, but the cellular variant of FSGS in this patient represents another type. The cause of many FSGSs is often never identified, making cause-based treatment difficult. This case demonstrates that identification of the cause of FSGS can lead to treatment of FSGS.
期刊介绍：
Clinical and Experimental Nephrology (CEN) Case Reports is a peer-reviewed online-only journal, officially published biannually by the Japanese Society of Nephrology (JSN). The journal publishes original case reports in nephrology and related areas. The purpose of CEN Case Reports is to provide clinicians and researchers with a forum in which to disseminate their personal experience to a wide readership and to review interesting cases encountered by colleagues all over the world, from whom contributions are welcomed.
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