Ghaffari Salman, Farsavian Ali, Daneshpoor Seyed Mohamad Mehdi, Azar Masoud Shayesteh
Department of Orthopaedics, Orthopaedic Research Center, Mazandaran University of Medical Science, Sari, Iran.
J Orthop Case Rep. 2016 Sep-Oct;6(4):35-38. doi: 10.13107/jocr.2250-0685.560.
Extraskeletal chondrosarcoma (EMC) is a rare, aggressive neoplasm which has been seen in the soft tissue area. This soft tissue sarcoma is classified to myxoid and mesenchymal based on histologic criteria. The mesenchymal subtype has a poor prognosis. In approximately 50% of patient with EMC, we could observe soft tissue lesion and stippled calcification in the conventional radiography.
In the current paper, we introduced a 47-year-old Iranian male patient having painless, mobile, nontender, and firm mass in left shoulder. We did not find neurovascular disturbance at the upper extremity, and the patient had a full range of motion in the left shoulder. The tumor was treated with wide resection and followed by radiation therapy.
Complete wide resection of mesenchymal chondrosarcoma could be enough as an initial treatment and chemotherapy reserved for patients that have unresectable masses. Apparently, the main key in the treatment is the surgical resection, and this process is the most important method in their management.
骨外软骨肉瘤（EMC）是一种罕见的侵袭性肿瘤，见于软组织区域。这种软组织肉瘤根据组织学标准分为黏液样和间充质型。间充质亚型预后较差。在大约50%的EMC患者中，我们可以在传统X线摄影中观察到软组织病变和点状钙化。
在本文中，我们介绍了一名47岁的伊朗男性患者，其左肩有一个无痛、可活动、无压痛且质地坚硬的肿块。我们未发现上肢存在神经血管紊乱，且该患者左肩活动范围正常。该肿瘤接受了广泛切除，随后进行了放射治疗。
间充质软骨肉瘤的完全广泛切除作为初始治疗可能就足够了，化疗则保留给有不可切除肿块的患者。显然，治疗的关键在于手术切除，这一过程是其治疗中最重要的方法。
