Shooshtarizadeh Tina, Movahedinia Sajjadeh, Mostafavi Hassan, Jamshidi Khodamorad, Sami Sam Hajialiloo
Department of Pathology and Laboratory Medicine, Shafa Yahyaeyan Orthopedic Hospital, Iran University of Medical Sciences, Tehran, Iran.
Arch Bone Jt Surg. 2016 Apr;4(2):166-72.
Aneurysmal bone cyst (ABC) is a benign expansile bone tumor, most commonly involving the medulla of long bones. ABC rarely arises within the cortex or in the subperiosteal region, radiographically mimicking other conditions, in particular surface osteosarcomathat is low-grade in nature and may go secondary ABC changes, and telangiectatic osteosarcoma. Both of these are sometimes mistaken microscopically for primary ABC. We review the characteristics of ABC cases in our center and report four unusualsurface ABCs arising in the subperiosteal or cortical region of long bones, identified among 38 histologically proven ABCs during a four-year period in our center. The surface ABCs occurred at an older agewith a predilection for diaphysis of femur, tibia, and humerus.
动脉瘤样骨囊肿（ABC）是一种良性膨胀性骨肿瘤，最常累及长骨骨髓。ABC很少发生于皮质内或骨膜下区域，影像学上可模仿其他病症，尤其是本质上为低级别且可能继发ABC改变的表面骨肉瘤以及毛细血管扩张性骨肉瘤。这两种病症有时在显微镜下会被误诊为原发性ABC。我们回顾了本中心ABC病例的特征，并报告了4例发生于长骨骨膜下或皮质区域的不寻常表面ABC，这些病例是在本中心4年期间38例经组织学证实的ABC中发现的。表面ABC发病年龄较大，好发于股骨、胫骨和肱骨的骨干。
