结节型局灶性肺炎CT影像分析

CT appearance analysis of nodular focal pnemonia

目的探讨结节型局灶性肺炎的CT征像,提高对本病的认识。方法回顾性分析经临床证实的8例结节型局灶性肺炎的CT资料。结果病变部位:该病大多部于肺外周、胸膜下区.主要CT表现:病灶与相邻胸膜的关系密切:常与邻近胸膜广泛均匀增厚,呈广基相连,部分病灶中部层面有垂直部分呈"刀切样"边缘及出现"方形征";病灶多呈现楔形或不规则形;病灶边缘可见粗长毛刺状改变,部分病灶与肺门之间可见一条或多条增粗血管相连;病灶内支气管充气征;抗炎治疗后病灶7例吸收缩小,1例无变化。结论病灶部位与CT征像对结节型局灶性肺炎的诊断、鉴别诊断有很大的价值。

Objective To investigate the CT appearance of nodular focal pneumonia so as to elevate of signs suggestive of this diagnosis. Methods The CT findings of 8 patients with clinically proven nodular focal pneumonia were analyzed retrospectively for location, pattern and secondary signs suggesting the diagnosis, Results The main CT finds were as follow： The lesions were located near the extensive thick pleural surface,biherial margins of some lesion were perpendicuar to pleura with a straight cut edge presenting a square sign;the coarse and long spiculations margins were found;vessel convergence between the lesion and hilum, there were air bronchugram image in the lesions in some lesions; the lesions were completety absorbed after the treatment of antibiotics in 7 cases Conclusion The locations and CT signs of the lesions have great value in the diagnosis and differetial diagnosis of nodular focal pneumonia.