科研之友
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摘要
multiple myeloma is a malignant proliferation of plasma cells which infiltrate bone marrow; cutaneous involvement with plasma cell neoplasms is uncommon, and may be nonspecific or specific. the specific dermatologic lesions arise either as a direct extension from the underlying bone lesions or by metastatic accumulation in the form of nodules and plaques. the authors report the case of a 59-year-old male patient with multiple myeloma, who developed cutaneous plasmacytomas (violaceous nodules on the limbs) seven months after the disease diagnosis.
