COINCIDENTAL AMYLOID NEPHROPATHY AND IGA GLOMERULONEPHRITIS IN A PATIENT WITH ANKYLOSING-SPONDYLITIS

A 43-year-old man with ankylosing spondylitis (AS) was admitted with p roteinuria and renal insufficiency. Coincidental IgA nephropathy and s econdary renal amyloidosis were diagnosed on renal biopsy. This is the first case reported of coincidental IgA nephropathy and renal amyloid osis as a cause of renal insufficiency in a patient with AS. Both enti ties should be considered in the diagnosis in a patient with AS and re nal impairment. A careful study of the renal tissue including, Congo r ed stain and immunofluorescence studies is necessary to establish a co rrect diagnosis in these patients.