G. Bruninx et al., Isolated idiopathic amyloid tumor of the sacrum: An important differentialdiagnosis to consider, J RADIOLOG, 82(4), 2001, pp. 495-497
Primary amyloidosis may present as a pseudotumoral mass. Often associated w
ith myeloma or paraproteinemia, it may also be isolated, without preexistin
g or associated disease. Isolated pseudotumoral bone involvement is rare an
d especially in the spine. Differential diagnosis is very important, becaus
e the prognosis of primary amyloidoma is excellent after surgical removal.