Extraosseous myelomatosis. Clinical presentation with symptoms in lower urinary tract

We believe this to be the first case reported of extraosseous myelomatosis seen clincally with lower urinary tract symptoms. Extraskeletal spread of myelomatosis which reportedly occurs in two thirds of cases is discovered postmortem. Immunoglobulin A prevails in this type of myelomatosis. Clinical course and autopsy findings are discussed.