肺原发性软骨瘤的CT表现

Computed tomography findings of pulmonary chondroma

目的:分析肺原发性软骨瘤的CT表现,提高对该病的诊断水平。方法:回顾性分析8例肺原发性软骨瘤的临床资料,所有病例均经穿刺活检或手术切除后病理证实。全部病例均行螺旋CT平扫,其中6例行CT增强扫描。结果:8例肺原发性软骨瘤均为单发,其中6例发生于右肺,2例发生于左肺。CT平扫,8例均表现为边界清楚的孤立结节或团块影,未见空洞及周围卫星病灶,3例边缘轻度分叶状,5例边缘或病灶内可见斑点片状钙化,3例无明显钙化;CT增强扫描4例无明显强化,2例呈中度不均匀强化。结论:肺原发性软骨瘤是罕见的肺部良性肿瘤,其CT表现有一定的特征性,需要与肺结核瘤、错构瘤及周围型肺癌等鉴别。

Objective： To study the CT features of primary pulmonary chondroma for improving diagnostic accuracy. Methods：The clinical data of eight patients with primary pulmonary chondroma proved by pathology of surgical specimens or biopsy were analyzed retrospectively. All patients had CT plain scanning, including 6 cases of enhanced scanning. Results： All of the 8 lesions were solitary. Six lesions were in the right lung and 2 in the left lung. CT findings： All lesions were solitary nodule or mass with well defined boundary, without cavity and satellites; 3 lesions had slightly lobular borderl; 5 lesions showed inner or periphery punctate and patchy calcifications, 3 lesions without evident calcifications; in 6 cases of enhanced scanning, 4 lesions had no evident enhancement and 2 lesions demonstrated moderate heterogeneous enhancement. Conclusions： Primary pulmonary chondroma is a rare benign tumor of lung, its CT findings have some characteristics, and should be differentiated from tuberculoma, harmatoma and peripheral lung cancer.