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[Secondary vesical amyloidosis].

J L Palmero Martí¹, A Budia Alba, S Arlandis Guzmán

¹Servicio de Urología, Hospital Universitario La Fe, Valencia.

Actas Urologicas Espanolas

|May 15, 2004

Summary

Systemic amyloidosis rarely affects the bladder. This case highlights secondary bladder amyloidosis in a rheumatoid arthritis patient presenting with severe hematuria, confirmed via biopsy and immunohistochemical staining for amyloid AA.

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Area of Science:

Urology
Nephrology
Rheumatology

Background:

Systemic amyloidosis is a rare condition.
Bladder involvement in systemic amyloidosis is highly unusual.
Distinguishing primary from secondary bladder amyloidosis is crucial for urologists.

Observation:

A patient with a significant history of rheumatoid arthritis presented with severe macrohematuria.
Diagnostic biopsy revealed amyloidosis.
Immunohistochemical staining confirmed the amyloid type as AA, indicating secondary amyloidosis.

Findings:

The case documents secondary amyloidosis of the bladder, a rare entity with approximately 20 published cases.
Amyloid AA deposition was identified as the cause of bladder involvement.

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Rheumatoid arthritis was identified as the underlying condition leading to secondary amyloidosis.

Implications:

This case underscores the importance of considering secondary bladder amyloidosis in patients with systemic inflammatory diseases like rheumatoid arthritis presenting with hematuria.
Accurate diagnosis through biopsy and immunohistochemistry is essential for appropriate management.
Further research into the mechanisms and treatment of secondary bladder amyloidosis may be warranted.