多发性骨髓瘤的特点是浆细胞恶性增生,广泛的骨质破坏,多有免疫球蛋白异常增高。但 IgG 型骨髓瘤国内报告很少,现将本文3例报告于下。病例摘要例1,男,57岁,1980年7月25日入院。发现脾肿大已6年,一年来全身骨骼经常酸痛。体检:体温37.2℃。无黄疽及出血点,无蜘蛛痣。心肺(-),腹软,肝未触及,脾于左肋下6Cm 可扪及,质硬, Multiple myeloma is characterized by malignant proliferation of plasma cells, a wide range of bone destruction, and more abnormal increase in immunoglobulin. However, few domestic reports of IgG-type myeloma, now this article 3 cases reported below. Case summary 1, male, 57 years old, admitted to hospital on July 25, 1980. Splenomegaly has been found for 6 years, a year of general bones often sore. Physical examination: body temperature 37.2 ℃. No jaundice and bleeding points, no spider nevus. Cardiopulmonary (-), abdominal soft, liver not touched, spleen in the left rib 6Cm palpable, hard,