关键词: bone neoplasm case report exostosis malignant transformation osteochondroma scapula scapular osteochondroma tumor

来  源:   DOI:10.7759/cureus.49582   PDF(Pubmed)

Abstract:
Osteochondromas (OCs) are bone lesions composed of cartilaginous and medullary bone capped with hyaline cartilage. OCs result from the separation of epiphyseal growth plate cartilage, pushing through the periosteal bone cuff. They commonly appear as pedunculated or sessile masses in the metaphysis of long bones and are the most common benign bone tumors. While rare in the scapula, OCs can occur there. Symptoms may arise from fractures, osseous abnormalities, or potential malignant transformation, especially in the presence of hereditary multiple exostoses (HME). The estimated rate of malignant transformation in solitary lesions is 1%, whereas in hereditary multiple OCs, it can reach up to 3-5%. We report a case of a 10-year-old female who presented with a gradually progressive swelling on the back of her right scapula. This progressive growth has been observed over the course of the past two years accompanied by mild pain. The pain was intermittent and did not affect her daily activities. On examination, a hard, tender, non-mobile swelling of approximately 2 × 2 cm was found over the right scapula. The patient had a normal range of motion in the shoulder and scapulothoracic regions. In conclusion, since solitary scapular OCs are extremely rare, they are quite common when associated with HME. This study aimed to increase awareness of the unusual site of OCs. Furthermore, we have included a full account of the surgical therapy we administered to this patient in order to assist future surgeons who may come across similar conditions.
摘要:
骨软骨瘤(OC)是由透明软骨覆盖的软骨和髓质骨组成的骨病变。骨phy生长板软骨分离产生OCs,穿过骨膜骨袖.它们通常在长骨的干phy端表现为带蒂或无蒂肿块,是最常见的良性骨肿瘤。虽然在肩胛骨很少见,OCs可以在那里发生。骨折可能会引起症状,骨异常,或者潜在的恶性转化,特别是在遗传性多发性外生骨(HME)的存在。孤立性病变的恶性转化率估计为1%,而在遗传性多发性OCs中,它可以达到3-5%。我们报告了一例10岁的女性,她的右肩胛骨后部逐渐肿胀。在过去两年的过程中观察到这种逐渐增长并伴有轻度疼痛。疼痛是间歇性的,不影响她的日常活动。在检查中,一个硬,tender,在右肩胛骨上发现约2×2cm的非活动肿胀。患者的肩部和肩胸区域的活动范围正常。总之,由于孤立的肩胛骨OCs极为罕见,当与HME相关联时,它们是相当常见的。这项研究旨在提高对OC异常位点的认识。此外,我们已经全面介绍了我们对该患者进行的手术治疗,以帮助未来可能遇到类似疾病的外科医生。
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