胰岛B细胞瘤在胰岛细胞瘤中最为常见,占全部胰岛内分泌肿瘤中的70%～75%。本病既可发生于数月的婴儿,亦可发生于80岁的老年人,多见于40～50岁的青壮年;男女发病率无明显差异。发病率报道不一,总体年发病率为1/100万～5/100万。随着医生对本病认识的提高和诊疗技术的进步,发病率 Islet B-cell neoplasia is most common in islet cell tumors, accounting for 70% to 75% of all islet endocrine tumors. The disease can occur in infants of several months, but it can also occur in 80-year-olds. It is more common in young adults aged 40 to 50 years. There is no significant difference between men and women. The incidence rate varies, with an overall annual incidence of 1/100 to 5/100 million. With the improvement of the doctor’s knowledge of the disease and advances in medical technology, the incidence rate