Tracheobronchial amyloidosis with hilar lymphadenopathy associated with a serum monoclonal immunoglobulin

Abstract

We report a case of amyloidosis, restricted to the lower respiratory tract, with prominent tracheobronchial involvement and bilateral hilar lymphadenopathy, associated with a monoclonal serum protein of the immunoglobulin G (IgG) lambda type. The careful search for an extrathoracic site of involvement was negative. This particular association has not been reported previously.