Healy Christopher, Kahn Leonard B, Kenan Samuel
Department of Orthopaedic Surgery, Hofstra Northwell School of Medicine, Manhasset, NY, USA.
Department of Pathology, Hofstra Northwell School of Medicine, Manhasset, NY, USA.
Skeletal Radiol. 2016 Sep;45(9):1307-11. doi: 10.1007/s00256-016-2426-3. Epub 2016 Jun 30.
Extraskeletal osteosarcoma (ESOS) originating in the subcutaneous tissue is a rare occurrence, accounting for less than 10 % of ESOS cases. Osteosarcoma of extraskeletal origin accounts for approximately 2-4 % of all osteosarcomas, and 1 % of soft tissue sarcomas. We report a case of an 80-year-old female with an isolated primary subcutaneous tumor of the forearm. After imaging, surgical excision, and pathological analysis, the diagnosis of a subcutaneous osteosarcoma was made. This report documents the clinical and pathological findings of subcutaneous ESOS in this case, along with a review of previous cases of subcutaneous ESOS.
起源于皮下组织的骨外骨肉瘤（ESOS）极为罕见，占ESOS病例的比例不到10%。骨外起源的骨肉瘤约占所有骨肉瘤的2%-4%，占软组织肉瘤的1%。我们报告一例80岁女性患者，其前臂出现孤立的原发性皮下肿瘤。经过影像学检查、手术切除及病理分析，诊断为皮下骨肉瘤。本报告记录了该病例皮下ESOS的临床和病理表现，并对既往皮下ESOS病例进行了回顾。
