Lo Chung Ping, Hsu Chia Chun, Chang Tsun Hou
Department of Radiology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
Korean J Radiol. 2003 Jul-Sep;4(3):191-3. doi: 10.3348/kjr.2003.4.3.191.
We report a 22-year-old man with a solid mass in the right proximal leg, which was furned out to be a gossypiboma. MR imaging revealed a well-defined mass lesion that showed intermediate signal intensity at T1-weighted imaging (T1WI) and slightly high signal intensity at T2-weighted imaging (T2WI). Wavy, low-signal-intensity stripes were visible within the fluid-filled central cavity. At surgical exploration, a sponge, retained after previous knee surgery, was discovered, and it was found that a granuloma had developed. Pathologic examination revealed granulomatous inflammation, with lymphocyte and giant cell infiltration. The presence of wavy, low-signal-intensity gauze fibers at T2WI may be a characteristic MR appearance of gossypiboma.
我们报告一名22岁男性，其右大腿近端有一实性肿块，结果发现是棉球瘤。磁共振成像（MR）显示一个边界清晰的肿块病变，在T1加权成像（T1WI）上呈中等信号强度，在T2加权成像（T2WI）上呈稍高信号强度。在充满液体的中央腔内可见波浪状低信号强度条纹。手术探查时，发现了一个在前次膝关节手术后残留的海绵，并且发现已经形成了肉芽肿。病理检查显示肉芽肿性炎症，伴有淋巴细胞和巨细胞浸润。T2WI上波浪状低信号强度纱布纤维的存在可能是棉球瘤的特征性MR表现。
