Amyloidosis is considered rare but has an incidence similar to that of Hodg
kin's disease and chronic granulocytic leukemia. The diagnosis should be co
nsidered in any patient with unexplained nephrotic-range proteinuria, heart
failure, peripheral neruopathy, or hepatomegaly. If a monoclonal protien i
s found in a patient with any of these clinical presentations, a biopsy sho
uld be performed and the specimen stained with Congo red. The simplest sour
ce of diagnostic material is subcutaneous fat tissue. Treatment usually con
sists of chemotherapy, which may be oral and low dose or high dose with ste
m cell rescue.