Sofka C M, Semelka R C, Marcos H B, Calvo B F, Woosley J T
Department of Radiology, University of North Carolina at Chapel Hill, 27599-7510, USA.
Magn Reson Imaging. 1998 Apr;16(3):343-6. doi: 10.1016/s0730-725x(97)00299-3.
Gastric leiomyoblastoma is a rare entity. In this report, we describe the magnetic resonance (MR) appearance of a recurrent gastric leiomyoblastoma 14 years after initial presentation. This tumor was heterogeneous and moderately low signal intensity on T1-weighted images and heterogeneous and moderately high signal intensity on T2-weighted images. The tumor also contained foci of low signal intensity on the post gadolinium images, consistent with areas of necrosis. The mass enhanced mildly and increased in enhancement on the delayed images, consistent with a hypovascular mass. Multiple liver metastases were noted. Magnetic resonance findings were confirmed with surgical specimens.
胃平滑肌瘤是一种罕见的实体瘤。在本报告中，我们描述了一例初诊14年后复发的胃平滑肌瘤的磁共振（MR）表现。该肿瘤在T1加权图像上呈不均匀中等低信号强度，在T2加权图像上呈不均匀中等高信号强度。肿瘤在钆增强图像上还含有低信号强度灶，与坏死区域一致。肿块轻度强化，延迟期强化增加，符合少血管肿块表现。发现有多个肝转移灶。磁共振表现经手术标本证实。
