肺炎性假瘤的HRCT诊断

目的 探讨肺炎性假瘤的CT表现.方法 21例经手术或病理证实的肺内直径小于2.0 cm炎性假瘤患者均经胸部高分辨力CT（RHCT）检查.其中,15例又经增强CT扫描.结果HRCT证实,21例病人中,浅分叶征见于6例,棘状突起5例,晕征8例,血管集束征5例.在接受增强扫描的15例中,增强后5例的病灶有轻度强化,而其余10例的病灶无明显强化,所有病例的病灶边缘均较光整.结论 HRCT对诊断肺内直径小于2.0 cm的炎性假瘤具有重要价值.而各种CT征象的综合分析有利于确诊.

Diagnosis of pulmonary inflammatory pseudotumor with HRCT

Objective To study the CT findings of pulmonary inflammatory pseudotumors.Methods Twenty-one patients with surgically or pathologically proved intrapulmonary inflammatory pseudotumors less than 2.0 cm in diameter underwent high resolution computed tomography(HRCT) scans of the chest,of them,15 patients underwent additional enhanced CT scans.Results HRCT directly demonstrated that,shoal lobulated sign was found in 6 cases,acanthoid processus sign in 5,halo sign in 8 and vessel convergence sign in 5.Among 15 cases who underwent enhanced CT scans,the lesions of 5 cases were light enhancement while those of other 10 cases were non-enhanced after contrast enhancement.The lesions of all cases were smooth and intact margin.Conclusion HRCT has important value in the diagnosis of pulmonary inflammatory pseudotumor less than 2.0 cm in diameter ,simultaneously,the overall analysis of varied CT signs is beneficial to the definite diagnosis of this disease.