邻皮质软骨瘤，又称骨膜软骨瘤，偏心性软骨瘤及外生型软骨瘤等，系独特而较罕见的良性软骨类肿瘤。有关其报告不多，我们得见19例，均经手术病理证实，兹报告如下。临床资料19例中男性12例，女性7例，男女之比为1．7：1。发病年龄18～75岁，平均23．6岁，2o岁以下13例，2o岁以 Adjacent cortical cartilage, also known as periosteal cartilage, eccentric cartilage and exogenous chondroma, is a unique and rare benign cartilage tumor. With regard to its few reports, we have seen 19 cases that have been confirmed by pathology. We hereby report the following. Clinical data in 19 cases of 12 males and 7 females, male to female ratio of 1.7:1. Incidence age 18 to 75 years old, average 23.6 years old, 13 cases below 2o years old, 2o years old