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Tubulointerstitial Nephritis and Uveitis: A Case Report.
Michael Mira1, Yuriy Khanin2, Miroslav Sekulic3
1Internal Medicine, Overlook Medical Center, Summit, USA.
Cureus
|April 18, 2024
Summary
Tubulointerstitial nephritis and uveitis (TINU) is a rare condition. This case highlights severe TINU symptoms requiring prompt corticosteroid treatment to preserve kidney function, with potential for recurrence.
Area of Science:
- Nephrology
- Ophthalmology
- Rheumatology
Background:
- Tubulointerstitial nephritis and uveitis (TINU) syndrome is a rare autoimmune disease.
- Its pathogenesis remains largely unknown, typically presenting with mild, self-limiting uveitis and nephritis.
Observation:
- A 29-year-old female with a history of cytomegalovirus (CMV) presented with severe bilateral uveitis and acute renal insufficiency.
- Laboratory results showed hematuria and proteinuria, and kidney biopsy confirmed tubulointerstitial nephritis.
Findings:
- The patient received corticosteroids for TINU, achieving baseline renal function after three months.
- However, uveitis recurred during steroid taper, necessitating steroid-sparing therapies.
Implications:
- TINU syndrome should be considered in patients with concurrent uveitis and renal dysfunction.
- Early corticosteroid intervention is crucial for preserving renal function.
- The variable prognosis and frequent relapses underscore the need for further research into optimal treatment strategies.
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