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Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
Published on: June 16, 2020
A case of slowly progressive scleroderma kidney
Masahiro Okabe1, Nobuo Tsuboi2, Takahide Suzuki2
1Division of Kidney and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-Ku, Tokyo, 105-8461, Japan. mokabe@jikei.ac.jp.
Clinical and Experimental Nephrology
|February 18, 2011
Summary
Systemic sclerosis can cause kidney failure without the typical rapid hypertension of scleroderma renal crisis. This case shows slow progression to end-stage renal disease over 14 years, suggesting atypical kidney involvement in systemic sclerosis.
Area of Science:
- Nephrology
- Rheumatology
- Systemic autoimmune diseases
Background:
- Scleroderma renal crisis (SRC) is a severe complication of systemic sclerosis (SSc), typically presenting with rapid kidney deterioration and severe hypertension.
- Advanced renal failure in SSc without SRC is rare, making its presentation and pathogenesis less understood.
Observation:
- A case of diffuse cutaneous SSc with a 14-year history of slowly progressing renal insufficiency to end-stage renal failure is presented.
- Renal biopsy revealed histological features typical of scleroderma kidney disease.
- Crucially, larger renal arteries appeared unaffected, distinguishing it from typical SRC.
Findings:
- The histological findings suggest a mechanism for slow, progressive renal impairment in SSc, distinct from the acute vascular damage seen in SRC.
- The absence of larger renal artery involvement may explain the lack of acute hypertensive crisis.
Implications:
- This case expands the understanding of renal manifestations in systemic sclerosis, highlighting a potential pathway for chronic kidney disease.
- It suggests that renal biopsy findings, particularly the state of larger renal arteries, can help differentiate between SRC and other forms of SSc-related kidney disease.
- Further research into these atypical presentations could lead to improved diagnostic and management strategies for SSc patients with renal impairment.
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