Fang Wanxuan, Nakagawa Ikuma, Sutherland Kenneth, Tanimura Kazuhide, Kamishima Tamotsu
Faculty of Health Sciences, Hokkaido University, North-12 West-5, Kita-ku, Sapporo 060-0812, Japan.
Department of Rheumatology, Hokkaido Medical Center for Rheumatic Diseases, Kotoni 1-3, Nishi-ku, Sapporo 063-0811, Japan.
J Imaging. 2021 Jul 12;7(7):113. doi: 10.3390/jimaging7070113.
The purpose of this study was to illustrate the clinical and imaging properties of giant intraosseous cyst-like lesions (GICLs) of the metacarpal bones extending beyond the central diaphysis in rheumatoid arthritis (RA) patients on magnetic resonance (MR) images. A keyword search was conducted to extract GICLs of the metacarpal bones out of MR reports in RA patients. There were nine GICLs extending from the subchondral bone region beyond the central diaphysis of the metacarpal bones on MR images in eight subjects with RA (seven females, one male). The age range was from 60 to 87 years with a median age of 65.5 years. The average disease duration was 13.1 years. As for the disease activity, one was low, six were moderate and one was high. None of the nine lesions were visible on radiography. The Steinbrocker stage distribution was as follows: I ( = 3), II ( = 2), and III ( = 3). Intraosseous cyst-like lesion of the metacarpal bones on MR images is a relatively rare manifestation in patients with long-standing RA. Although the lesion seems to be derived from subcortical bone break, it is not necessarily erosive in nature.
本研究的目的是阐明类风湿关节炎（RA）患者掌骨的巨大骨内囊肿样病变（GICLs）在磁共振（MR）图像上延伸至骨干中部以外的临床和影像学特征。通过关键词搜索从RA患者的MR报告中提取掌骨的GICLs。在8例RA患者（7例女性，1例男性）的MR图像上，有9个GICLs从掌骨骨干中部以外的软骨下骨区域延伸。年龄范围为60至87岁，中位年龄为65.5岁。平均病程为13.1年。疾病活动度方面，1例为低度，6例为中度，1例为高度。9个病变在X线片上均不可见。Steinbrocker分期分布如下：I期（=3），II期（=2），III期（=3）。MR图像上掌骨的骨内囊肿样病变在长期RA患者中是一种相对罕见的表现。尽管该病变似乎源于皮质下骨破坏，但其本质不一定是侵蚀性的。
