[Organ-specific nodular pulmonary amyloidosis of the A lambda type in Sjogren syndrome].

Abstract

The exclusive involvement of the lungs with A lambda-type amyloidosis in nodular dispositions in a case of Sjögren's syndrome is very rare. An immunoglobulin lambda-type light chain, benign, monoclonal gammopathy has been verified as the ethological cause. The urine concentration of paraproteins was below the detection limit of the common examination methods and could only be found immunoelectrophoretically in urine concentrated 100-200 fold. The question of a possible relationship with Sjögren's syndrome is being discussed.