Microscopic polyangiitis in dialysis patient： Renal‒limited onset and relapse with alveolar hemorrhage

Key Points

• The aim is to explore the case of a dialysis patient with renal-limited microscopic polyangiitis and its complications.
• Detailed patient case report from initial diagnosis to subsequent hospitalizations.
• Monitoring of ANCA levels and renal function over time.
• Interventions included corticosteroid therapy and rituximab for relapses.
• The patient initially diagnosed with renal ANCA-associated vasculitis experienced renal function decline leading to dialysis.
• Substance use of prednisolone was tapered off, and rituximab was periodically administered until observed relapse.
• After a pulmonary hemorrhage incident, the patient received steroid pulse therapy and rituximab, resulting in recovery.