Muñoz-Palacio Bernardo J, Figueroa Shairine, Matute Gustavo, Garcia-Mejía Carolina, Betancur Juan F
Pulmonology, Clinica Medellin, Medellin, COL.
Internal Medicine, Clinica Las Américas, Medellin, COL.
Cureus. 2020 Jan 22;12(1):e6738. doi: 10.7759/cureus.6738.
A hibernoma is an uncommon benign soft tissue tumor composed of brown adipose cells; the mediastinal location as presentation is scarce, with only six cases previously reported. The diagnosis of hibernoma is challenging and must be made based on the clinical, radiographic, and cytologic features. Here we present a 33-year-old woman without any relevant medical history presented for outpatient evaluation of a dry cough persisting for three months, and the X-rays revealed a dense well-defined mass with smooth borders in the left upper posterior mediastinum. Posterior mediastinal lesions represent a relatively small proportion of patient loads in thoracic surgery and account for a total of 25% of the cases, with neurogenic tumors among the most frequently seen in adults. Of these, the nerve sheath tumors (schwannoma, neurofibroma, paraspinal ganglioneuroma) are the most seen. Other differential diagnoses of paravertebral masses are the paraspinal abscess, metastases, hematoma, descending aortic aneurysm, among others. The patient underwent surgical resection via left posterolateral thoracotomy, without complications.
冬眠瘤是一种由棕色脂肪细胞组成的罕见良性软组织肿瘤；以纵隔部位为表现的情况很少见，此前仅报道过6例。冬眠瘤的诊断具有挑战性，必须根据临床、影像学和细胞学特征来做出诊断。在此，我们报告一名33岁女性，无任何相关病史，因持续三个月的干咳前来门诊评估，X线检查显示左上后纵隔有一个边界清晰、密度较高且边缘光滑的肿块。后纵隔病变在胸外科患者中所占比例相对较小，占病例总数的25%，其中神经源性肿瘤在成人中最为常见。其中，神经鞘瘤（神经鞘瘤、神经纤维瘤、椎旁神经节瘤）最为多见。椎旁肿块的其他鉴别诊断包括椎旁脓肿、转移瘤、血肿、降主动脉瘤等。患者通过左后外侧开胸手术进行了切除，无并发症发生。
