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Systemic reactive AA amyloidosis is an intractable complication in patients with a long history of rheumatoid arthritis (RA). To help to more easily and reliably detect the presence of this form of amyloidosis in patients with RA and start intensive treatment as early as possible, we examined the sensitivity and usefulness of abdominal fat aspiration biopsy with phenol Congo red staining in the diagnosis of AA amyloidosis.

internal medicine

Phenol Congo Red Staining Enhances the Diagnostic Value of Abdominal Fat Aspiration Biopsy in Reactive AA Amyloidosis Secondary to Rheumatoid Arthritis