Lee Hyun-Min, Cho Kyu-Sup, Choi Kyung-Un, Roh Hwan-Jung
Department of Otorhinolaryngology and Medical Research Institute, Pusan National University School of Medicine, Busan, South Korea.
Auris Nasus Larynx. 2012 Jun;39(3):337-40. doi: 10.1016/j.anl.2011.05.002. Epub 2011 Sep 8.
Aneurysmal bone cyst (ABC) is a benign, expansile lesion typically affecting the long bones and vertebrae of patients younger than 20 years. Approximately 2% of ABCs occur in the head and neck region, most commonly affecting the mandible. Although the most common co-existing lesion associated with ABCs is the giant cell tumor, ABCs can be radiologically confused with telangiectatic osteosarcoma in cases of aggressive behavior and rapid growth. Here, we report a case of an aggressive ABC of the maxilla confused with telangiectatic osteosarcoma in a patient who underwent several operations for an osteoblastoma that was diagnosed histopathologically. This case highlights the need for a differential diagnosis both radiologically and histopathologically, because ABCs can easily be interpreted as a giant cell tumor or an osteoblastoma, and, on occasion, can be mistaken for osteogenic malignancies.
动脉瘤样骨囊肿（ABC）是一种良性、膨胀性病变，通常累及20岁以下患者的长骨和椎体。约2%的ABC发生于头颈部区域，最常累及下颌骨。尽管与ABC最常见的并存病变是骨巨细胞瘤，但在具有侵袭性行为和快速生长的病例中，ABC在放射学上可能与毛细血管扩张型骨肉瘤相混淆。在此，我们报告1例上颌骨侵袭性ABC被误诊为毛细血管扩张型骨肉瘤的病例，该患者因组织病理学诊断为成骨细胞瘤而接受了多次手术。该病例强调了在放射学和组织病理学上进行鉴别诊断的必要性，因为ABC很容易被误诊为骨巨细胞瘤或成骨细胞瘤，有时还可能被误诊为成骨性恶性肿瘤。
