Glomerulonephritis and Interstitial Nephritis Originating from Vasculitis of the Interlobular Arteries of the Kidney in a Patient with Eosinophilic Granulomatosis with Polyangiitis

Eosinophilic granulomatosis with polyangiitis (EGPA) is a type of antineutrophil cytoplasmic antibody-associated vasculitis. Patients often present with peripheral neuropathy and purpura, suggesting impairment of small vessels, especially capillaries. However, medium-sized vessels and small vessels...

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Main Authors: Takashi Nawata, Masaki Shibuya, Yukio Takeshita, Makoto Kubo, Noriko Uesugi, Masafumi Yano
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Case Reports in Rheumatology
Online Access:http://dx.doi.org/10.1155/2022/9606981
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author Takashi Nawata
Masaki Shibuya
Yukio Takeshita
Makoto Kubo
Noriko Uesugi
Masafumi Yano
author_facet Takashi Nawata
Masaki Shibuya
Yukio Takeshita
Makoto Kubo
Noriko Uesugi
Masafumi Yano
author_sort Takashi Nawata
collection DOAJ
description Eosinophilic granulomatosis with polyangiitis (EGPA) is a type of antineutrophil cytoplasmic antibody-associated vasculitis. Patients often present with peripheral neuropathy and purpura, suggesting impairment of small vessels, especially capillaries. However, medium-sized vessels and small vessels with a vascular diameter larger than that of capillaries may also be impaired, causing atypical findings. We report a case of EGPA treated with corticosteroids, cyclophosphamide, and mepolizumab. Renal biopsy revealed vasculitis of the interlobular arteries as the cause of glomerulonephritis and interstitial nephritis. This case suggests the importance of considering vessels upstream of capillaries dominant EGPA as a differential diagnosis in patients with eosinophilia.
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spelling doaj-art-bdf24aa3940c43eabf9b5320cf5b32e02025-08-20T03:23:33ZengWileyCase Reports in Rheumatology2090-68972022-01-01202210.1155/2022/9606981Glomerulonephritis and Interstitial Nephritis Originating from Vasculitis of the Interlobular Arteries of the Kidney in a Patient with Eosinophilic Granulomatosis with PolyangiitisTakashi Nawata0Masaki Shibuya1Yukio Takeshita2Makoto Kubo3Noriko Uesugi4Masafumi Yano5Department of Medicine and Clinical ScienceDepartment of Medicine and Clinical ScienceDepartment of Neurology and Clinical NeuroscienceDepartment of Medicine and Clinical ScienceDepartment of PathologyDepartment of Medicine and Clinical ScienceEosinophilic granulomatosis with polyangiitis (EGPA) is a type of antineutrophil cytoplasmic antibody-associated vasculitis. Patients often present with peripheral neuropathy and purpura, suggesting impairment of small vessels, especially capillaries. However, medium-sized vessels and small vessels with a vascular diameter larger than that of capillaries may also be impaired, causing atypical findings. We report a case of EGPA treated with corticosteroids, cyclophosphamide, and mepolizumab. Renal biopsy revealed vasculitis of the interlobular arteries as the cause of glomerulonephritis and interstitial nephritis. This case suggests the importance of considering vessels upstream of capillaries dominant EGPA as a differential diagnosis in patients with eosinophilia.http://dx.doi.org/10.1155/2022/9606981
spellingShingle Takashi Nawata
Masaki Shibuya
Yukio Takeshita
Makoto Kubo
Noriko Uesugi
Masafumi Yano
Glomerulonephritis and Interstitial Nephritis Originating from Vasculitis of the Interlobular Arteries of the Kidney in a Patient with Eosinophilic Granulomatosis with Polyangiitis
Case Reports in Rheumatology
title Glomerulonephritis and Interstitial Nephritis Originating from Vasculitis of the Interlobular Arteries of the Kidney in a Patient with Eosinophilic Granulomatosis with Polyangiitis
title_full Glomerulonephritis and Interstitial Nephritis Originating from Vasculitis of the Interlobular Arteries of the Kidney in a Patient with Eosinophilic Granulomatosis with Polyangiitis
title_fullStr Glomerulonephritis and Interstitial Nephritis Originating from Vasculitis of the Interlobular Arteries of the Kidney in a Patient with Eosinophilic Granulomatosis with Polyangiitis
title_full_unstemmed Glomerulonephritis and Interstitial Nephritis Originating from Vasculitis of the Interlobular Arteries of the Kidney in a Patient with Eosinophilic Granulomatosis with Polyangiitis
title_short Glomerulonephritis and Interstitial Nephritis Originating from Vasculitis of the Interlobular Arteries of the Kidney in a Patient with Eosinophilic Granulomatosis with Polyangiitis
title_sort glomerulonephritis and interstitial nephritis originating from vasculitis of the interlobular arteries of the kidney in a patient with eosinophilic granulomatosis with polyangiitis
url http://dx.doi.org/10.1155/2022/9606981
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