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目的探讨肺腺癌脑单发转移瘤的CT征象特征。方法选取28例确诊为肺腺癌脑单发转移瘤的CT资料,分析CT征象特征。结果瘤灶以幕上分布最多(27例,占96%),顶额叶内20个(占71%);28个瘤灶中21个(占75%)表现为略高密度的类圆形结节或不规则分叶状结节病灶,多数呈不均匀中度强化,瘤旁中度及中度以上水肿;7个(占25%)表现为囊状病灶,囊环壁平扫不连续完整,增强囊环壁呈明显强化,多数有壁结节,瘤旁水肿明显。结论肺腺癌脑单发转移瘤以结节状病灶最多见,呈不均匀中度强化。囊状病灶以囊壁明显强化及壁结节为其特点。
Objective To investigate the CT features of single brain metastases of lung adenocarcinoma. Methods CT data of 28 cases diagnosed as solitary adenocarcinoma of lung adenocarcinoma were selected, and CT features were analyzed. Results Most lesions were found on the supratentorial membrane (27 cases, 96%) and 20 (71%) on the top of the tumor. Twenty-one of the 28 tumors (75%) showed slightly higher density Nodules or irregular lobulated nodules, most of them were uneven and moderately enhanced, moderate and moderate tumor above the edema; 7 (25%) showed cystic lesions, cyst wall swept discontinuous Complete, enhanced cyst wall was significantly enhanced, the majority of nodules, tumor paradema obvious. Conclusions The single brain metastases of lung adenocarcinoma are the most common nodular lesions with uneven enhancement. Cystic lesions to the wall enhancement and wall nodules is characterized.