作者收集了1975年～1991年间诊断和治疗的软骨肉瘤(骨型和骨外型)224例,其中7例为骨外型间叶性软骨肉瘤(EMC),分为两个年龄组:小儿组(男2例;女1例,年龄3～6岁);成年组(女3例;男1例,年龄38～54岁)。症状因累及区域不同而各异,2例胸部肿块患儿分别有急性呼吸功能衰竭和轻度咳嗽,另一患儿颈部可触到肿块。4例成年患者中3例因肢体肿块伴有或无局部疼痛或坐骨神经痛而就医,另1例为胸部X线检查 The authors collected 224 chondrosarcomas diagnosed and treated between 1975 and 1991 (bone and exoskeleton), of which 7 were extraosseous chondrosarcoma (EMC) and were divided into two age groups: pediatric group (2 males; 1 female, aged 3-6 years); adult group (female 3; male 1; age 38-54). Symptoms vary according to the region involved. Two children with thoracic mass had acute respiratory failure and mild cough, respectively. Another patient had a palpable mass on the neck. Three of the 4 adult patients were seen as limb masses with or without local pain or sciatica, and the other was chest X-ray examination.