Systemic amyloidosis involving two renal transplants

Area of Science:

• Nephrology
• Transplantation Immunology
• Pathology

Background:

• Primary amyloidosis is a systemic disease that can cause chronic renal failure.
• Renal transplantation is a treatment option for end-stage renal disease due to amyloidosis.
• Recurrence of amyloid in renal allografts is a known complication.

Observation:

• Two patients with primary amyloidosis who received renal transplants developed amyloid deposition in their allografts.
• Amyloid deposition patterns varied between patients, affecting glomeruli, interstitium, and blood vessels.
• One patient experienced graft failure due to severe glomerular amyloid, requiring retransplantation.

Findings:

• Glomerular amyloid deposition was associated with renal allograft failure in one patient.
• Amyloid in the interstitium and blood vessels did not preclude satisfactory graft function in the other patient.
• This case highlights the differential impact of amyloid localization on renal allograft outcomes.

Implications:

• Understanding amyloid deposition patterns is crucial for predicting renal allograft outcomes in primary amyloidosis patients.
• Further research is needed to elucidate mechanisms of amyloid recurrence and develop targeted therapies.
• These findings may inform patient selection and post-transplant monitoring strategies.