Introduction
Light chain (AL) amyloidosis is a disease characterized by the
deposition of AL amyloid protein in each tissue/organ, typically
followed by lymphoproliferative disorder accompanied with globulinemia.
Although monoclonal gammopathy of undetermined significance and multiple
myeloma are well-known causes of AL amyloidosis, AL amyloidosis due to
Waldenström’s macroglobulinemia (WM) has rarely been reported. Here, we
report a case of AL amyloidosis developing during the course of WM.