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  • Title: [A case of rheumatoid arthritis with secondary amyloidosis in urinary bladder].
    Author: Nakayamada S, Saito K, Nakatsuka K, Nakano K, Tokunaga M, Tsujimura S, Ota T, Tanaka Y.
    Journal: Ryumachi; 2002 Jun; 42(3):618-23. PubMed ID: 12166117.
    Abstract:
    We document a case of 61-year-old woman with a 24 year history of rheumatoid arthritis (RA), who developed severe polyarthralgia, dry cough, paresthesia in the legs, frequent micturition, and severe macrohematuria. We diagnosed as severe RA with extraarticular manifestations based on interstitial pneumonia, mononeuritis multiplex, subcutaneous nodules, and high titer of rheumatoid factor. Ultrasonography demonstrated an intravesical mass lesion. A histological examination of the urinary bladder by endoscopic biopsy revealed marked deposition of AA amyloid. The diagnosis of secondary amyloidosis and bacterial cystitis were made based on histological findings and urine culture. At first, we administered antibiotics by intravenous infusion, which resulted in cure of cystitis and partial improvement of macrohematuria. Then combination therapy of corticosteroids and cyclophosphamide successfully reduced the disease activity of RA. There have only been a few reports published so far on the vesical amyloidosis in patients with RA. However, 5 of 10 patients (50%) in vesical amyloidosis died because of continuous massive hematuria, which induced disseminated intravascular coagulation and multiple organ failure. In conclusion, secondary amyloidosis of the urinary bladder should be considered as a possible cause of hematuria in patients with long-term RA and as an important prognosis factor of RA.
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