Okoh Ndubuisi, Ibrahim Mustapha Usman, Salihu Muhammad Nuhu, Ibrahim Yusuf
Department of Clinical Services, National Orthopedic Hospital, Dala, Kano, Nigeria.
Department of Surgery, Bayero University Kano and Aminu Kano Teaching Hospital, Kano, Nigeria.
Niger Med J. 2022 Sep 10;63(1):86-90. doi: 10.60787/NMJ-63-1-98. eCollection 2022 Jan-Feb.
Extraskeletal osteosarcoma (ESO) is a rare form of osteosarcoma that has no attachment to bone and can be found in the thigh, retroperitoneum, chest, breast, orbit, retropharyngeal space etc. Literature about ESO is still mainly case reports and case series with few reported cases in our environment. We therefore report this 52-year-old with swelling at the left shoulder which progressed over a 3-year period. Pre-operative evaluation (both clinical, radiological and histopathological) were in favor of soft tissue sarcoma. A wide local excision showed no bony attachment intra-operatively. Histology of the specimen confirmed ESO. Patient had adjuvant chemotherapy and was followed up for 14 months before this report with no sign of local recurrence or distant metastases.
骨外骨肉瘤（ESO）是骨肉瘤的一种罕见形式，不附着于骨骼，可发生于大腿、腹膜后、胸部、乳房、眼眶、咽后间隙等部位。关于骨外骨肉瘤的文献仍主要是病例报告和病例系列，在我们所处的环境中报道的病例较少。因此，我们报告这位52岁的患者，其左肩出现肿胀，持续了3年。术前评估（包括临床、放射学和组织病理学）均支持软组织肉瘤的诊断。广泛局部切除术中未发现与骨的附着。标本的组织学检查证实为骨外骨肉瘤。患者接受了辅助化疗，并在本报告前随访了14个月，无局部复发或远处转移的迹象。
