涎腺胚细胞瘤：一种罕见儿童唾液腺肿瘤的磁共振成像表现
Sialoblastoma (embryoma): MR findings of a rare pediatric salivary gland tumor.
作者信息
Som P M, Brandwein M, Silvers A R, Rothschild M A
机构信息
Department of Radiology, Mount Sinai School of Medicine of the City University of New York, NY 10029, USA.
出版信息
AJNR Am J Neuroradiol. 1997 May;18(5):847-50.
We report the findings in a 21-month-old girl who had a noninfiltrating mass in the left cheek, just anterior to the masseter muscle, which, at surgery, proved to be a sialoblastoma. Sialoblastoma has a histologic appearance reminiscent of a primitive state of salivary gland development; that is, it shows an arrested state of salivary maturation. MR imaging in this case showed that the lesion was isointense with muscle on T1-weighted images, had a high-intermediate signal intensity similar to that of fat on T2-weighted images, and enhanced sparsely and nonhomogeneously.
我们报告了一名21个月大女童的检查结果，该女童左脸颊咬肌前方有一个非浸润性肿块，手术证实为成涎细胞瘤。成涎细胞瘤的组织学表现让人联想到唾液腺发育的原始状态；也就是说，它显示出唾液成熟的停滞状态。该病例的磁共振成像显示，病变在T1加权图像上与肌肉信号强度相等，在T2加权图像上具有与脂肪相似的高中等信号强度，且强化稀疏且不均匀。
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