肺硬化性血管瘤CT诊断

目的 回顾分析肺硬化性血管瘤(SHL)的CT表现特征，提高术前诊断水平。方法 选择经手术及病理证实的8例SHL，男3例，女5例，平均年龄44．38岁。CT平扫后行病灶1．5mm薄层扫描，再经肘静脉团注100ml非离子型对比剂，以速率3ml／S进行增强扫描。结果 CT平扫8例病灶均呈圆形或类圆形，平均直径3.3cm，2例显示支气管气征，3例内部可见钙化，病灶边缘光整、清楚，无分叶、毛刺、胸膜凹陷、淋巴结转移等恶性征象，但邻近支气管均显示不同程度受压、移位。CT平扫5例密度均匀，3例内有钙化不均匀，测得非钙化部的平均CT值为31．4Hu，注入对比剂后8例均有增强，较平扫的CT值平均上升58Hu。结论 中年女性，CT发现肺内孤立性类圆形病灶，内部显示钙化，病灶增大缓慢，周边支气管和血管有受压、移位时，应想到本病的可能。

CT in diagnosis of sclerotic hemangioma of lung

Objective To retrospectively analyze the CT appearance of sclerotic hemangioma of lung(SHL). Methods 8 cases of surgically and pathologically confirmed SHL(male,3 cases, female,5 cases5 averaging 44.38 years old) underwent CT scanning followed by 1.5mm sickness thin slice scanning of lesions and enhanced scanning by bolus injection of 100ml of non ionic contrast medium via cubital vein. Results CT scanning showed 8 cases appearing round or elliptic shape with an average diameter of 3.3cm, 2 cases of bronchus airform, 3 cases of calcification. In addition, the edges of the lesion were smooth and clear without lobulation, spicule, pleural recesses and lymphnode metastasis, however the adjacent bronchus was compressed and displaced to some extent. Homogeneous density was observed in 5 cases, while heterogenous density plus calcification in 3 cases. The average CT value of non-calcified lesion was 31.4Hu, and it increased by 58 Hu after contrast-medium was injected compared with that of CT scanning. Conclusion slowly growing solitary pulmonary nodulus with interior calcification and compression and displacement of adjacent vessels and bronchus could be a hint of sclerotic hemangioma of lung.