Jeblaoui Y, Ben Neji N, Haddad S, Zribi A, Néji R, Boussafa H, Sahtout S, Hchicha S
Service d'otorhinolaryngologie et de chirurgie maxillofaciale, CHU de La Rabta, 1007 Tunis, Tunisie.
Rev Stomatol Chir Maxillofac. 2007 Jun;108(3):238-40. doi: 10.1016/j.stomax.2006.10.006. Epub 2007 Apr 18.
We report the case of a 24-year-old woman presenting with a rapidly growing mass in the right masseteric region. MRI suggested a diagnosis of a rhabdomyosarcoma but CT-scan evoked a benign lesion such as chondroblastoma or aneurismal bone cyst. The biopsy specimen proved the diagnosis of aneurismal bone cyst and the patient was treated by surgical curettage. There was no recurrence after 4 years of follow-up.
The aneurismal bone cyst of the jaw is a rare pseudocystic lesion, characterized by replacement of the normal bone with fibro-osseous tissue containing blood-filled sinusoidal or cavernous spaces. The lesion generally affects young persons under 20 years of age. The molar region, the angle, and the ascending ramus of the mandible are the predominantly affected sites. The lesion does not have any clinical or radiological specificity and surgical curettage is the standard treatment. Recurrence is rare and occurs within 30 months after surgery.
我们报告了一名24岁女性的病例，其右咬肌区出现一个迅速生长的肿块。磁共振成像（MRI）提示诊断为横纹肌肉瘤，但计算机断层扫描（CT）显示为良性病变，如软骨母细胞瘤或动脉瘤样骨囊肿。活检标本证实为动脉瘤样骨囊肿，患者接受了手术刮除治疗。随访4年后无复发。
颌骨动脉瘤样骨囊肿是一种罕见的假性囊肿性病变，其特征是正常骨被含有充满血液的窦状或海绵状间隙的纤维骨组织所替代。该病变通常影响20岁以下的年轻人。磨牙区、下颌角和下颌升支是主要受累部位。该病变没有任何临床或放射学特异性，手术刮除是标准治疗方法。复发罕见，发生在手术后30个月内。
