Abstract：
We report a case of an aneurysmal bone cyst (ABC) originating in a rib. A 34-year-old woman was admitted to our medical department for evaluation of left rib pain and an abnormal shadow in the left 7th rib observed on chest radiography. Computed tomography (CT) revealed an osteolytic lesion involving the left 7th rib. Positron emission tomography/CT showed slight fluorodeoxyglucose uptake in the lesion. We performed 7th rib resection with a 4 cm margin from the tumor, including the intercostal muscles in the 6th and 7th interspaces. Histopathological examination of the resected specimen showed multiple blood-filled spaces and fibrous trabeculae, which confirmed the diagnosis of an ABC. The patient\'s postoperative course was uneventful. Although rare, clinicians should consider ABCs in the differential diagnosis of rib tumors.
摘要：
我们报告了一例起源于肋骨的动脉瘤性骨囊肿（ABC）。一名34岁的妇女被送进我们的医疗部门，以评估左肋骨疼痛和在胸部X线片上观察到的左第7肋骨的异常阴影。计算机断层扫描（CT）显示涉及左侧第7肋骨的溶骨性病变。正电子发射断层扫描/CT显示病变中轻微的氟脱氧葡萄糖摄取。我们在距肿瘤4厘米的边缘进行了第7次肋骨切除术，包括第六和第七间隙的肋间肌.切除标本的组织病理学检查显示多个充满血液的空间和纤维小梁，这证实了ABC的诊断。患者术后病程顺利。虽然罕见，临床医生在肋骨肿瘤的鉴别诊断中应考虑ABCs.
