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January 2009

Erythematous Papules on the Legs—Quiz Case

Author Affiliations
 

MICHAEL E.MINGMD, MSCE

 

CARRIE ANN R.CUSACKMDSENAIT W.DYSONMDJACQUELINE M.JUNKINS-HOPKINSMDVINCENTLIUMDKARLA S.ROSENMANMD

Arch Dermatol. 2009;145(1):77-82. doi:10.1001/archdermatol.2008.556-a

A 67-year-old man recently diagnosed as having Waldenström macroglobulinemia (WM) presented with an asymptomatic cutaneous eruption on his shins, ankles, and feet for several days. The diagnosis of WM was based on findings from immunoelectrophoresis, which demonstrated a monoclonal IgM spike, and a bone marrow aspirate that revealed lymphoplasmacytic lymphoma with extensive plasmacytic differentiation. The volume percentage of quantitative cryoglobulins was 1% (reference range, 0%-0.5%). He reported a history of peripheral neuropathy.

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