Abstract
Idiopathic nodular glomerulosclerosis has a poor renal prognosis and is characterized by diffuse nodular glomerulosclerotic lesions in the absence of diabetic mellitus. Here, we report the case of a 69-year-old woman with no smoking history who developed renal dysfunction and proteinuria in the absence of overt diabetes or obesity. A biopsy specimen showed nodular mesangial sclerosis with arteriolar hyalinosis and severe large-vessel arteriosclerosis, leading to a diagnosis of idiopathic nodular glomerulosclerosis. Addition of esaxerenone to her existing renin–angiotensin–aldosterone inhibitor therapy led to a rapid decrease in the proteinuria levels and the maintenance of renal function without any complications for more than a year. The results suggest that intensive renin–angiotensin–aldosterone blockade might be an effective treatment for idiopathic nodular glomerulosclerosis.
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Acknowledgements
We thank Dr. Kensuke Joh of the Department of Pathology, Jikei University School of Medicine, for the pathological diagnosis in this case. The authors acknowledge the technical assistance of Naofumi Imai and Kaori Takahashi. A summary of this case was presented in an oral session at the 58th Kanto Koshinetsu Regional Meeting of the Japanese Diabetes Society, Tokyo, Japan in 2020 and at the 32nd Meeting of the Japanese Diabetic Nephropathy Study Group, Tokyo, Japan in 2020.
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Yamaguchi, H., Hosojima, M., Kabasawa, H. et al. A case of idiopathic nodular glomerulosclerosis successfully treated by intensive blockade of the renin–angiotensin–aldosterone system. CEN Case Rep 12, 311–317 (2023). https://doi.org/10.1007/s13730-022-00766-3
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DOI: https://doi.org/10.1007/s13730-022-00766-3